Across three and a half centuries, four phases, and a single coastal village in present-day Okayama, more than two hundred smiths kept one fire alight — and produced more designated swords than any other lineage in the history of Japan.
The The Bizen Osafune School (備前長船), active 1238–1596 in Bizen Province across 210 documented smiths: 16 Kokuhō (National Treasures), 119 Jūbun, 153 Jūbi, 222 Tokubetsu Jūyō, 1,612 Jūyō.
Phase 1 · Ko-Osafune (古長船) · 1238 – 1335
Three smiths working at the village of Osafune across the second half of the thirteenth century set the terms for every Bizen blade that followed: Mitsutada the founder, his son Nagamitsu, and the closely related Sanenaga, the *Sansaku* triumvirate whose work opens this phase. Their window runs from the mid-Kamakura period into the early fourteenth century, when leadership passed to Nagamitsu's son Kagemitsu, the third-generation head whose dated tachi, naginata, and tanto carry the phase to its close around the Kenmu years. The setsumei repeatedly fix Kagemitsu by genealogy and date, citing pieces inscribed from Gen'o 1 (1319) and Genko 1 (1321) through Shochu and Kenmu (1325 to 1334); these *ubu* or lightly shortened, date-bearing blades are what give the founding chapter its firm chronological spine and separate it from the workshop-broad output of the later Nanbokucho and Oei generations. This is the orthodox mainline before the school fanned out: the generation that built the standard, not the ones that later reinterpreted it.
The constructional signature of the phase is a tightly packed *ko-itame*, at times mixed with *mokume*, carrying fine *ji-nie* in dense particles, fine *chikei*, and a vivid *midare-utsuri* that the examiners single out again and again; one Kagemitsu tachi even pushes the *utsuri* toward a striped, *Aoe*-like *dan-utsuri* with reverse-slanting dark bands. Against the Ko-Bizen root, with its standing *jifu-utsuri* and thicker *ha-nie*, this phase reads as more refined and more tightly controlled in the *ji*. The temper marks the phase's internal turn. Where Nagamitsu and Mitsutada favored flamboyant *choji-midare*, Kagemitsu pulls the hand inward to a *suguha*-based temper carrying *ko-gunome*, *ko-choji*, and angular elements, often with a reverse (*saka-gakari*) tendency, in a *nioi*-dominant, bright *nioiguchi*; the setsumei credit him specifically with perfecting *kata-ochi gunome*, the dropped-shoulder pattern repeatedly named as his completion. The *boshi* is the gentle *sansaku-boshi*, a shallow *midare-komi* or *notare* turning back in *ko-maru*. None of this is the powerful *nie*, scattered *tobiyaki*, and *Soshu-den* drama of the later Soden-Bizen, nor the open *gunome* and pointed candlewick *boshi* of the Oei revival; it is calmer, *nioi*-bound, and date-anchored.
A collector separates this phase by its named masters and the kantei points the setsumei make explicit: *kata-ochi gunome* and the *sansaku-boshi* read Kagemitsu, while reverse-slanting *jihan-utsuri* and certain *boshi* forms let the examiners assign proxy *daimei* hands such as Chikakage and the collaborator Kagemasa, the latter named in a Shochu 2 (1325) joint tachi dedicated to Chichibu Shrine. Tanto are a discriminator in their own right, surviving in number for Kagemitsu where they are scarce for Nagamitsu, including the *kanmuri-otoshi* and *hira-zukuri* pieces with devotional *bonji* and *kurikara* carvings. Provenance present in the sample carries weight: a Kagemitsu tachi transmitted in the Chikuzen Kuroda family with its old scabbard, an *orikaeshi-mei* katana recorded in the Shimazu line, and tanto and tachi recorded in Honma's inventory of the Imperial collection, where Kagemitsu is ranked beside Yoshimitsu, Shintogo Kunishige, and Samonji. These are the works that define the founding core against everything Osafune later became.
Nagamitsu (長光) — Mainline · 1274-1304. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Signed works by Nagamitsu survive in greater numbers than those of any other smith of the Kamakura period: the published sources open his record with the statement that his "extant signed works are the most numerous among Kamakura-period swordsmiths"[[c:1]], and that every one of them shows "no unevenness in the making"[[c:2]]. He was the son of Mitsutada, founder of the Osafune school, its second generation, and "a master ranking alongside his father"[[c:3]] in the NBTHK's words. The record gathered here holds 172 signed blades against 62 unsigned; "the two-character form is the most numerous" of his signatures[[c:4]], and dated pieces such as an *ubu* tachi of Einin 2 (1294) fix his chronology as few contemporaries allow.
His style divides broadly in two, a formula the published sources repeat across decades of designations. One manner is a robust construction carrying on the feeling of his father Mitsutada, tempered in a flamboyant *midare* dominated by *choji*; the other is a form of standard or slender width in a comparatively calm *suguha*-toned temper with *choji-ashi*. In the exuberant manner the *hamon* is a *choji-midare* mixed with *gunome*, and *ashi* and *yo* enter in abundance. *Nioi* predominates with *ko-nie*, fine *kinsuji* and *sunagashi* run through, and the *nioiguchi* is bright. The element the sources single out as his own is the "round-topped, plump *choji*"[[c:5]], a full swelling crest not shown in his father's record. The *boshi* is ko-maru far more often than any other form, the published sources reading again and again "shallow *notare*, returning short in *ko-maru* at the point"[[c:6]]; on the more active blades it runs in as *midare-komi* before that turn-back[[c:7]], and on a minority it stops in *yakizume*[[c:8]], the whole settling toward what the notes call the atmosphere of the so-called Sansaku *boshi*[[c:9]].
The *jigane* is an *itame* that tends in places toward a slightly standing grain and on many blades tightens into a refined *ko-itame*. Very fine *ji-nie* adheres thickly, fine *chikei* enter, and a vivid *midare-utsuri* rises clearly, present on the great majority of his blades. Of one signed late tachi the published sources write that its tightly compacted *itame*, with extremely fine *ji-nie* and minute *chikei*, is a forging "combining precision with beauty"[[c:10]]; the same notes return again and again to steel that is bright and clear.
Three registers can be followed through the record. The earliest lies closest to his father, a *choji*-dominant temper into which *kawazuko* mingles, work that "truly calls Mitsutada to mind"[[c:11]]. The prime works carry the rounded plump *choji* with *gunome*, the vivid *utsuri* and the Sansaku *boshi*. The calm *suguha* manner gathers late, around blades cut with the title Sakon Shogen and with long signatures. Transmission texts of the Muromachi and Edo periods held that there were two generations, the Shogen pieces belonging to a second; the NBTHK observes that "no difference between a first and second generation can be found in the signature characters"[[c:12]], and the persuasive reading now takes Shogen Nagamitsu as the work of his later to final years. In the *tanto* of this late register appear the first buds of *kataochi-gunome*, the form his son Kagemitsu would complete.
His flamboyant works can at first glance resemble the Ichimonji school, and the published sources draw the line by his own features: the *gunome* stands out more prominently within his *midare*, the pattern grows calmer above the *monouchi* where the *yakiba* drops distinctly lower, and the *boshi* settles toward the Sansaku form. Against his father he is told by the rounded swelling crests and by a temper that keeps its composure where the early works flare. His late *suguha* and the *kataochi* buds of his *tanto* open directly onto Kagemitsu, so that Mitsutada, Nagamitsu and Kagemitsu form the spine of the Osafune mainline, with Nagamitsu its broad and steady center.
Fujishiro ranks him Sai-jo saku. Twenty-seven of his blades are Important Cultural Properties, the most of any swordsmith, and six are National Treasures; beneath them stand twenty-eight Tokubetsu Juyo and one hundred and forty-six Juyo, out of two hundred and fifty-four designated works on record, and nine of his blades are entered in Honma's inventory of the Imperial collection. The meibutsu Daihannya Nagamitsu passed from Ashikaga Yoshiteru through Miyoshi Nagayoshi to Oda Nobunaga and Tokugawa Ieyasu, and the wider *denrai* names Akechi Mitsuhide, Toyotomi Hideyoshi, the Asano of Geishu, the Hosokawa of Higo, the Bizen Ikeda, the Uesugi, the Maeda, the Mito, Owari and Kishu Tokugawa houses, and the Imperial Family. His National Treasures and Important Cultural Properties are patrimony, preserved among holders that include the Tokyo National Museum, the Kyoto National Museum, the Tokugawa Art Museum, Atsuta Jingu and Itsukushima Jinja. Because he signed so freely, the body of work in the Tokubetsu Juyo and Juyo tiers is substantial, and a signed Nagamitsu, though it comes to market only rarely and at the very top of it, is not wholly beyond a patient collector's reach in the way the great unsigned masters are; when one appears, it is an event.
Kagemitsu (景光) — Mainline · 1303-1336. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Kagemitsu is the third master of the Osafune mainline, the son of Nagamitsu and grandson of Mitsutada. The published sources put the matter plainly: he 'is the son of Nagamitsu and the third generation of Osafune, famed for having completed the kataochi-gunome'[[c:1]]. Where his grandfather set the school's flamboyant standard and his father gave it the round choji, Kagemitsu took the saw-tooth temper that had only budded in his father's tanto and made it the family's last great invention.
That temper is the first mark of his hand. The kataochi-gunome, a gunome whose shoulders drop away in even steps, runs over a suguha base, its ashi and choji leaning back in the slanting saka-gakari (逆がかり) that is his personal hallmark, the heads of the teeth squared rather than rounded. The published record frames his hand as the quieter one in the family: his style 'has little of his father's flamboyance, being on the whole milder than Nagamitsu, whether a suguha base with gunome mixed in and slanting back, or a temper led by kataochi-gunome'[[c:2]]. On the tanto the hamon is at its most regular, an angular gunome with kataochi-gunome worked in.
His jigane matches that precision. The itame and ko-itame are tight and well worked, the ji-nie fine, chikei present. Quiet though the temper is, the sources reserve their highest note for his forging: 'in the quality of the forging, pieces are seen that in particular surpass even his father, and this is worthy of note'[[c:3]]. Across the ji runs not his father's flowing midare-utsuri alone but, at his best, an orderly bo-utsuri (棒映り) and a banded, stepped reflection that the connoisseurs liken to the Aoe school, where one Tokuju blade is said to 'show the flavour of Aoe dan-utsuri'[[c:4]].
The boshi follows the temper rather than overruling it. On the tanto it is small and runs in midare-komi, returning ko-maru on the omote and pointed in feeling on the ura, the published account reading 'the boshi is small and runs in midare-komi, the tip ko-maru on the omote, turning back with a pointed feeling on the ura'[[c:5]]. On the tachi the same ko-maru recurs out of a shallow notare, sometimes with a touch of hakikake. It is the unforced, contained boshi of a maker whose drama is carried by the body of the hamon.
His output divides cleanly by form. The tanto carry the pure, regular kataochi-gunome and the most elaborate carving in the family, with bonji (梵字), kurikara (倶利迦羅) and sanko-ken (三鈷剣) horimono cut far beyond anything his grandfather or father attempted; the tachi keep a suguha base with kataochi only in part. He is also among the most precisely datable of all Kamakura smiths, his signed and dated chronology running across nearly thirty years, and the published sources add that, unlike his father, 'many tanto survive, which is also among his distinctions'[[c:6]].
Kagemitsu completes the three-generation arc that defines Kamakura Bizen, his grandfather Mitsutada founding the school, his father Nagamitsu setting its classical standard, and Kagemitsu bringing both temper and forging to their finished form before handing the manner to his pupil Chikakage, whose work is close enough that some signed Kagemitsu blades are read as Chikakage's daimei. For the collector he is Sai-jo saku in Fujishiro's grading, with three National Treasures, fifteen Important Cultural Properties and eleven Tokubetsu Juyo on record. The most famous of his blades is the Kogaryu Kagemitsu, a National Treasure named for the little dragon of its carved kurikara, carried by tradition by Kusunoki Masashige and in modern times held by the Meiji Emperor; other blades passed through Uesugi Kenshin, the Tokugawa shoguns, and the Date, Maeda and Shimazu houses. Of the three Osafune masters he is the one whose hand can be followed most exactly, signed, dated and carved more fully than either his father or his grandfather.
Mitsutada (光忠) — Mainline · 1238-1239. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Mitsutada (光忠) worked at Osafune in Bizen around the middle of the Kamakura period, and the published sources introduce him with one repeated sentence: he is the de facto founder who built the Osafune school, "the largest lineage in the history of Japanese swordmaking"[[c:1]]. Tradition makes him the son of Chikatada, of whom no work survives, and the Honcho Kajiko derives the line from the Ko-Bizen Masatsune group settled at Osafune. From his school emerged Nagamitsu, Sanenaga, and Kagemitsu, and from old times his blades were treasured as the swords of renowned commanders and valiant warriors[[c:2]].
The published record divides his work into two registers. Most of what survives is o-suriage and unsigned, accepted as his by appraisal: bold, imposing blades whose jigane is well refined and beautiful, with ji-nie in dust-fine particles, so that, "setting the utsuri aside, they can at a glance suggest Kyoto work"[[c:3]]; the hamon is most often a "flamboyant midare led by choji"[[c:4]]. The signed tachi are comparatively ordinary in shape, their hamon of a calmer, "more restrained workmanship"[[c:5]]. Through both registers runs the kawazuko-choji (蛙子丁子), his tadpole-headed hallmark, found in more than two of every five of his published blades, about ten times the rate seen in Nagamitsu's work. An older description adds "a particular moisture and luster"[[c:6]] that recalls Yamashiro jigane.
His forging is itame, usually mixed with mokume, tightening in many blades to a dense ko-itame; the grain stands out only here and there. Ji-nie is nearly constant, fine chikei enter, and a midare-utsuri rises vividly in about half of the published blades, the reflection that holds even his most Kyoto-like jigane to Bizen. The hamon is a choji-midare mixed with gunome and togariba; on the grandest unsigned blades it climbs high and breaks into fukuro-choji, juka-choji, and the kawazuko form. Ashi and yo enter frequently, the nioi is deep with ko-nie, kinsuji and sunagashi run finely through, and the nioiguchi is bright and clear. The boshi settles into ko-maru in about a third of the record; against it stands the pointed return the sources call characteristic of him, "the boshi that runs in midare and returns with a point"[[c:7]]. One unsigned katana the NBTHK judged "Mitsutada's crowning achievement"[[c:8]], kin to the Ikoma Mitsutada, a National Treasure.
The record now reads his career in phases. Two-character tachi in a Ko-Bizen manner, a nie-laden ko-midare with jifu-utsuri and a somewhat subdued nioiguchi, were long catalogued separately as "Ko-Bizen Mitsutada." A Tokubetsu Juyo tachi on which both manners coexist, choji with gunome and togariba at the base, a chu-suguha tone above, its signature in a transitional hand, led the NBTHK to judge those blades extremely likely to be his earliest works; a rare signed kodachi in the same vein bears out the Honcho Kajiko from the evidence of the blade itself. At the other end stands a group of signed tachi, choji-led and comparatively calm, which "at a glance shows a manner that can be tied to his son Nagamitsu"[[c:9]]; on one of them the character mitsu is virtually identical to Nagamitsu's, and "the possibility of a proxy signature cut by Nagamitsu"[[c:10]] is raised.
Within the school his place is the founder's. Set against Nagamitsu, the published sources judge the activities of his ji and ha a step more active and pronounced, and settle attributions between father and son on that point; the kawazuko-choji and the pointed midare-komi boshi carry the same weight. A two-character tachi of ordinary form but brilliant hamon served the appraisers as the criterion binding his small-scale signed works and the grand unsigned ones to a single hand, alongside the tachi signed Bizen no Kuni Osafune Mitsutada, listed as Gyobutsu in Honma's inventory of the Imperial collection. The National Treasure commentary sets out two forms of his tachi, one wide and imposing with an ikubi-kissaki, the other somewhat slender and calm with a chu-kissaki, and finds his jigane clearer and more beautiful than that of his contemporaries[[c:11]]. Its signed National Treasure tachi, unusually for him, stresses gunome in the choji-midare and is read as setting out the manner that Nagamitsu and Kagemitsu carried on. One long unsigned katana the NBTHK called "a grand work that seems to presage the flourishing of the Osafune school that followed"[[c:12]].
He is Sai-jo saku in Fujishiro's grading, and the Toko Taikan places him fourth on its roll. Three of his blades are National Treasures and fifteen are Important Cultural Properties, a weight of designation that ranks third among the roughly twelve thousand swordsmiths on record; beneath those tiers stand ten Tokubetsu Juyo and eighteen Juyo, twenty-eight blades in all, of sixty designated works on record, thirty-one signed and twenty-two unsigned. Thirty-three carry recorded provenance, a roll that runs through the men who held the country: Oda Nobunaga, Tokugawa Ieyasu, Kato Kiyomasa, and Kobayakawa Takakage, with the Imperial Family, the Shimazu, the Owari and Kishu Tokugawa, the Uesugi, and the Satake. To the finest of the unsigned blades attaches a Hon'ami Kochu origami at one hundred mai, "exceptionally high for a Bizen blade"[[c:13]]. The National Treasures and Important Cultural Properties rest permanently in their tiers and will never trade; of recorded whereabouts, his blades are held by the Tokyo National Museum, the Tokugawa Art Museum, the Boston Museum of Fine Arts, Eisei Bunko, and Itsukushima Jinja. The published sources call a signed Mitsutada "exceedingly precious"[[c:14]], and even the attributed blades of those tiers come to open hands only rarely; when one does, it is a landmark.
Sanenaga (眞長) — Mainline · 1299-1309. Jūbun, Jūbi, Tokujū, Jūyō. Sanenaga is the quiet member of the Osafune mainline, recorded in the Kokon Mei Zukushi as a son of Mitsutada and the younger brother of Nagamitsu, and active in the late Kamakura period. Where his father and brother are read by their flamboyant choji, Sanenaga is the smith in whom the school's calm straight temper finds its surest hand, and it is in suguha that his work is most confidently identified. The published sources return to the same description again and again: within the Osafune group of his time he excelled at a gentle suguha-toned temper, and a hallmark of his work is the well-tightened nioiguchi.
The signature that survives is itself part of the study of him. Blades carry both a two-character signature and a longer one, and among the long signatures are dated works inscribed Shoan, Kagen, Tokuji and Engyo. The Kokon Mei Zukushi places the first Sanenaga in the Bun'ei and Koan years and treats the dated long signatures of Shoan and after as a second generation, though the question of one against two generations is still left open in the published record. The undated two-character pieces are read as the earlier hand, the dated long signatures as the later, and this division gives the connoisseur a rare double anchor of style and date.
The jigane is the refined ko-itame of the direct line, tightly forged and often mixed with mokume and itame, with ji-nie lying microscopically fine and delicate chikei entering the steel. Over it a midare-utsuri stands up vividly, and on some blades a more linear, suji-like utsuri runs toward the edge before breaking into the midare form higher up. This is the bright, well-knit jigane the appraisers expect of the Osafune mainline, and it is the floor on which Sanenaga's tempering is read.
The hamon is built on a chu-suguha mixed with ko-choji, ko-gunome and a little ko-notare, into which ko-ashi and yo enter; the nioiguchi tends to tighten and carries slight ko-nie, with fine sunagashi at times, and it comes up bright and clear. The boshi is the calm point that completes the picture: it goes in with a shallow notare and turns back small in ko-maru[[c:1]], the composed turnback that suits the tightened straight temper below it. It is this quiet, controlled finish, jigane, hamon and boshi all of a piece, that the published sources call his typical manner.
A second and rarer manner exists. On a small number of blades the temper opens into a comparatively flamboyant midare of choji and gunome, somewhat saka-gakari, close enough that it can be mistaken for his brother Nagamitsu[[c:2]]. The tell that keeps the two apart is the nioiguchi, which on Sanenaga stays tighter and cooler in every case; the appraisers note that whichever manner appears, the nioiguchi remains characteristically tight. A few kodachi also survive under his name, an uncommon survival shared in the school chiefly with Mitsutada and Nagamitsu.
For the collector, Sanenaga is Sai-jo saku in Fujishiro's grading, and the record of him is largely a record of the great houses. A signed tachi was transmitted in the Satsuma Shimazu family, carrying a Hon'ami Kotsune origami noted in the family's 1928 sale catalog; another came down through the Kaga Maeda family with a Hon'ami appraisal, and a signed tachi with its koshirae passed through the Odawara Okubo house. Five signed tachi are Important Cultural Properties, patrimony held among others by the Seikadō Bunko and outside the market; beneath them ten of his blades stand in the Tokuju tier and forty-one more in Juyo, and his work is recorded in Honma's inventory of the Imperial collection and came down through the Date, Shimazu, Maeda and Hosokawa houses. Within his own family he is the counterweight to his brother: where Nagamitsu is plump and flamboyant, Sanenaga is the disciplined hand that shows how refined a plain Bizen suguha can be made, and a blade in his calm manner is among the harder Osafune names to bring to hand.
Kagemasa (景政) — Mainline · 1317-1327. Jūbi, Tokujū, Jūyō. Kagemasa of Osafune, who styled himself Shinshi Saburō, is a mainline Bizen smith of the late Kamakura period whose place in the school is fixed less by his pedigree than by his company. The published sources are candid that his genealogy is not clearly known, telling him variously as Kagemitsu's pupil or his younger brother; what settles the matter is a collaborative *tachi* he made jointly with Kagemitsu bearing dates of the Shōchū and Karyaku eras, one of them an Imperial *gyobutsu* and one designated *kokuhō*. From those joint pieces he is read as a smith who stood in extremely close relation to Kagemitsu, and the surviving dated works run across Bunpō, Shōchū, Karyaku and Kenmu, so that the Jūyō-Bijutsuhin commentary can say plainly that he was "clearly a disciple within the Kagemitsu line"[[c:1]]. His latest date, Ryakuō 3 (1340), carries his hand into the earliest Nanbokuchō generation of Osafune.
His characteristic hand is Kagemitsu's manner brought one half-step short of Kagemitsu's order. Over a finely forged *ko-itame* he tempers a midare built on angular *kaku-gunome* and *kataochi*-style *gunome*, mixed with *ko-gunome*, small *togariba* and a little *ko-chōji*, the whole inclining in *saka-gakari*, the reverse-slant of the late Osafune mainline. *Ashi* and *yō* enter the ha, fine *kinsuji* and *sunagashi* run through it, and the *nioiguchi* is bright with *ko-nie*. On the Tokubetsu-Jūyō *tachi* signed in *orikaeshi-mei* the published sources gather these features into a single judgment, that "in both *ji* and *ha* the distinctive traits of Kagemasa are well expressed"[[c:2]]. The 68th Jūyō *tachi* sharpens it further, finding his own points of interest precisely where he departs from his model, in that he "mixes an even greater variety of tempering forms than Kagemitsu"[[c:3]] and in "a somewhat stronger degree of variation within the midare, which is where Kagemasa's points of interest emerge"[[c:4]].
The *jigane* is the proper mainline Osafune steel and the firmest part of his identity. The forging is a closely packed *ko-itame*, at times mixed with *mokume* or running a little toward *nagare* and *masame*; very fine *ji-nie* lies on it thickly, fine *chikei* enter, and over this stands a vivid *midare-utsuri*, which the sources call the bright, well-refined steel of a "finely wrought forging in the manner of the mainline Osafune"[[c:5]]. The *bōshi* answers the ha: a *midare-komi* or *notare-komi* turning in *ko-maru*, and on the dated and *ubu* *tachi* it takes the *sansaku*-like form the school shares, so that the cap too "calls Kagemitsu to mind." The steel can tend slightly dark, and the *utsuri* is the constant that holds across signed and unsigned alike.
The corpus draws two registers and a temporal arc. On *tachi* the kaku and *kataochi-gunome* core prevails; on *tantō* and *ken* he turns instead to a quiet *suguha*. The Jūyō-Bijutsuhin *tantō* of Karyaku 2 (1327) shows an orderly *gunome* in *ko-nie* that, set against Kagemitsu, is "larger, opening at the base, mixed with a *kataochi* tendency"[[c:6]], and carries a *sankō-tsuka-ken* and *gomabashi* among its Buddhist carvings; his signed *ken* runs a narrow *hoso-suguha* with *kinsuji*, *sunagashi* and a *nijūba*-like *yubashiri*. Across the period the dated *tachi* move from Bunpō through Ryakuō 3, the latest reaching the first Nanbokuchō years, and the published sources read a deliberate restraint into them: on more than one blade the ha "shows a slight *kozumi-gokoro*, a subtly subdued tendency, and this too marks a point of interest in Kagemasa"[[c:7]].
His standing in the school is defined against Kagemitsu at every turn, and the comparison is the whole of the connoisseurship. The published sources are consistent that in rank he yields a little to Kagemitsu while in style he stands very close, skillful and faithful; the 4th Tokubetsu-Jūyō *tachi*, its signature cut away below the character *Kage*, is judged beyond doubt his because the workmanship "rivals Kagemitsu"[[c:8]]. It is exactly this small shortfall that does the appraising: a *mumei* blade that reads like Kagemitsu but stops a touch short of his finish is given to Kagemasa, and most of his surviving work is *mumei* attributed on that reasoning, eleven signed pieces against eleven unsigned in the official record. He worked, the sources note, in the *kataochi-gunome* and *suguha* that were Kagemitsu's own specialties, which is why the two are so hard to part and why his bright *midare-utsuri* and the slightly freer play of his midare are made to carry the distinction.
Fujishiro grades him *Jō-jō saku*. Twenty-two designated works stand on the official record, four in the Tokubetsu-Jūyō tier and sixteen Jūyō, with the Jūyō-Bijutsuhin *tantō* above them; signed examples are so few that each is treated as study material, the published sources valuing one *ubu*, single-*mekugi-ana* *tachi* dated Ryakuō 3 as "excellent material for research on this smith" and his rare signed *ken* as a piece prized "for understanding the workmanship of a smith whose signed pieces are scarce"[[c:9]], one "filled with archaic grace and refined dignity"[[c:10]]. Provenance is recorded against three of his blades, among them the *tantō* once held by Ide Hiroshi of Tokyo and a *tachi* transmitted in the Sakai family of Wakasa; one signed *tachi* is now in the Hakutsuru Museum, the rest held in private hands of recorded whereabouts. A Kagemasa is not beyond a collector's reach as the most exalted Osafune names are, his blades sitting in the Tokubetsu-Jūyō and Jūyō tiers rather than held in perpetuity in the museum and shrine collections that hold the school's highest designations; but with so small a signed corpus and so few coming to market, an example appears only from time to time, and a signed, dated, *ubu* *tachi* is a landmark when it does.
Kagehide (景秀) — Mainline · 1249-1256. Jūbun, Tokujū, Jūyō. Kagehide is an Osafune smith of the middle-to-late Kamakura period, known above all for one blade: the tachi by the name Kuronbo-giri, cherished in the house of Date Masamune and designated an Important Cultural Property. The published sources open almost every entry the same way, that Kagehide has been transmitted since old times as the younger brother of Mitsutada[[c:1]], the founding head of the Osafune school, though one record preserves the variant tradition that he was the elder brother. His signed works are few, and the judges call them rare and of high documentary value each time one appears. Where Mitsutada is the orthodox main line, Kagehide is its more wayward sibling, a hand that the commentaries say is rather to be appraised as aligning with the Ichimonji group.
The feature that names him is the pointed togariba set into his clove temper. Like Mitsutada he commands a flamboyant chōji-dominant midare, the published sources writing that he too excelled in the showy chōji manner[[c:2]], the yakihaba wide and undulating, in places the crest of the temper rising so high that it reaches the shinogi. But where the two part company is exact and often repeated: compared with Mitsutada the intervals of the midare run closer[[c:3]], the pointed togariba stand out[[c:4]], and the whole carries a faintly sooty cast the texts call susudoshii, so that one senses, in their phrase, a feeling of that kind[[c:5]]. On his finest blades the chōji is mixed with fukuro-chōji, kawazu-ko-chōji and angular ha, with tobiyaki interspersed, the yakihaba conspicuously alternating wide and narrow. The judges read the conspicuous togariba as the single point by which his mumei work can be marked as his.
The constant beneath the temper is the jigane. He forges an itame, at times a well-packed ko-itame, mixed with mokume and a flowing nagare-hada, well worked and carrying a fine, sometimes dust-fine ji-nie, with chikei entering and a clear midare-utsuri standing across both his manners. Over that ji the hamon is chiefly nioi-based with ko-nie adhering, ashi and yō entering well, slight kinsuji and sunagashi running through, and on the best pieces a bright, clear nioiguchi. The bōshi runs into a midare-komi turning back in ko-maru, at times pointed with hakikake. It is a Bizen jigane worked with care, the reflection of the period, over which the pointed clove temper does its distinguishing work.
His record divides into two registers rather than two periods. The first is the flamboyant Kuronbo-giri manner just described, his recognized prime, whose summit on paper is a great signed tachi published in the Kōzan Oshigata: the published sources call it the same artistic territory as the Important Cultural Property tachi, a work in which Kagehide's true strengths are brought forth without reserve[[c:6]], the finest among his works. The second is a calmer register, a suguha or chū-suguha base mixed with ko-chōji, ko-gunome and very small notare, the pointed elements held back, the nioiguchi bright. The judges connect this quieter hand to the observation that early Osafune work by Mitsutada and Sanenaga can show a Ko-Bizen-like territory, noting of one such blade that its lower half is so classically refined it can at a glance recall a superior Ko-Bizen sword[[c:7]]. His signatures survive only as two large characters, never longer, which the commentaries give as one reason a fully fixed standard for him is hard to set.
Within the early Osafune mainstream he stands beside Mitsutada, Nagamitsu and Sanenaga. The published sources separate his flamboyant chōji from Mitsutada by exactly the closer-set midare and the standing-out togariba, while reading his calmer pieces as nearer to Nagamitsu and Sanenaga; on a late tachi whose temper centers on low-waisted gunome they remark that the manner is closer to those two than to Mitsutada, yet the noticeable pointed elements keep the attribution his. His bright midare-utsuri, his ko-nie disposition and above all his togariba are the traits by which the judges affirm his unsigned work from era and school, his attribution resting in the end on that pointed tell rather than on any signed standard. He is the brother who carried the Osafune name in his own slightly harsher voice.
For the collector he is a rare early Osafune name. Fujishiro grades him Jō-jō saku. He has no National Treasures; his record runs instead through one Important Cultural Property, the Kuronbo-giri, together with a small group at the Tokubetsu Jūyō and Jūyō tiers, twenty-two designated blades on record across those two ranks. His provenance roll is short but distinguished, the Kuronbo-giri held in the Date house, a Sekigahara reward blade inherited by the Tanegashima retainers of the Shimazu, and a signed tachi formerly of the Mōri family among those of recorded whereabouts, with examples now at Futarasan Jinja and the Hayashibara Museum of Art. Most of his designated blades are held rather than traded, and signed Kagehide of ubu form is among the scarcer things in the early Bizen field; a privately held example comes to light only seldom, and when one does it is a landmark, a document of the more individual side of the first Osafune generation.
Sanemitsu (眞光) — Mainline · 1317-1319. Kokuhō, Jūbun, Jūyō. Sanemitsu is transmitted, according to the prevailing view, as a disciple of Nagamitsu within the mainline Osafune school of Bizen Province. His career spans the late Kamakura period, with a dated work bearing a Shokei 2 (1333) inscription establishing his chronological anchor. Signed works are extremely few; on rare occasions examples are encountered bearing such signatures as "Osafune junin Sanemitsu" or "Sakon Shogen Taira Sanemitsu." In both *jihada* and *hamon* there are works that approach Kagemitsu; however, among his extant pieces there are also a small number whose dating and artistic rank are in no way inferior to Nagamitsu himself, and on this basis some scholars have advanced the theory that there existed a second generation bearing the same name. The name Sanemitsu further extends into the Muromachi period as an Oei-Bizen smith, evidenced by works dated to the Oei era and joint productions with Morimitsu and Yasumitsu, placing later-generation bearers of this name firmly within the same circle as those prominent Oei masters.
The Kamakura-period Sanemitsu is distinguished by a tightly forged *ko-itame-hada* with extremely fine *ji-nie*, delicate *chikei*, and vividly standing *midare-utsuri*. His *hamon* displays rounded, full-bodied *choji* in the Nagamitsu manner, mixed with *gunome* and *togariba*, characteristically *nioi-gachi* with attached *ko-nie*; fine *kinsuji* and *sunagashi* appear, and the *nioiguchi* remains bright and clear. In the lower half of certain blades the *yakiba* becomes distinctly lower and shifts to a more *suguha*-like tendency, while the *nie* deepens --- a trait by which his particular manner is recognized. His *boshi* tends toward shallow *notare-komi* with *ko-maru*, differing from the so-called *sansaku-boshi* seen in works by Nagamitsu, Kagemitsu, and Chikakage. The Oei-period Sanemitsu works in the characteristic group style: *itame* intermingled with abundant *mokume* producing a standing texture with *chikei*, the *hamon* featuring *koshi-hiraki gunome* and *choji* with a somewhat thrusting *boshi*, and the emergence of *sakizori* in the blade form.
Among Osafune works of the late Kamakura period, Sanemitsu's particular manner is consistently recognized as closely allied to the output of smiths in the orbit of Nagamitsu, yet the compact and restrained quality of his *choji* and the distinctive treatment of the *boshi* establish an identifiable individuality. The NBTHK has noted that his overall workmanship closely resembles the calmer class of works by his master, and his pieces are praised for their refined, densely forged *ko-itame* and bright *nioiguchi*. Among the various smiths of Osafune, Sanemitsu is comparatively less frequently encountered, and his surviving works --- whether from the Kamakura or Oei period --- are valued both as fine examples of the school and as material of high documentary value for understanding the breadth of his capabilities.
Sukenaga (助長) — Mainline · 1303-1317. Jūbi, Tokujū, Jūyō. A single tachi cut Bizen no Kuni Osafune-ju Sukenaga saku[[c:1]] and dated the second month of Showa 1 (1312) settles a smith whose place had long been uncertain. Sword reference works record makers named Sukenaga under Fukuoka Ichimonji, Yoshioka Ichimonji and Osafune alike, and most of his surviving blades carry only the two characters of his name, so the published sources note that his lineage had remained unclear; the long signature and the date on this one tachi, now a Tokubetsu Juyo work, fix him as an Osafune hand of the late Kamakura period, active around the Kagen and Showa eras. He belongs to the circle that formed around Nagamitsu, the master who gave the Osafune name its standing, and the NBTHK's published commentary on his dated tachi calls the workmanship 「同時代の長光一門に極めて近似した出来口」[[c:2]], an output exceptionally close to that of the Nagamitsu lineage of the same period. He is not of its central line, however, and the same commentary observes of his signature that it 「長船主流とは思われない」[[c:3]], that the calligraphy does not appear to be that of the Osafune mainstream.
The hand that emerges from his blades is that of a suguha specialist, and this is where he separates himself from the showy clove temper that dominates the school around him. He hardens a slender or medium suguha base into which only small, restrained activity is set, ko-choji, ko-gunome and the occasional ko-notare, with ko-ashi entering well. The nioiguchi tightens rather than spreads, a controlled and quiet edge that the published commentary on one of his signed tachi describes as 「匂口締りごころに淋しく」[[c:4]], the nioiguchi tending tight and somewhat spare. Where his Osafune contemporaries pursue a high, flamboyant choji, Sukenaga keeps a tempered, even line, and the published sources record plainly that he specialized in suguha. The boshi follows the same calm logic, a shallow notare turning back in a small round point and tending toward yakizume, what the commentary reads as the threefold Osafune manner of the day.
Beneath the temper lies the jigane that marks every blade in his small body of work. He forges a tight itame, often a fine ko-itame, mixed with mokume and carrying ji-nie, and over it a vivid midare-utsuri stands clearly in every surviving example. This is the Osafune steel of the late Kamakura, the reflection that the school shared, and on it his quiet suguha is read. The shapes preserve the period: a slender tachi with koshizori and funbari, a small point, an elegant carriage that the commentary on one of his mumei tachi calls 「太刀姿が美しい」, a beautiful tachi figure. Bo-hi run the length of both faces, carved kaki-nagashi or kaki-toshi. The whole presents as a deliberately restrained Osafune hand, slender, tightly forged, suguha over a bright irregular reflection.
His record divides into two registers rather than into periods, since his manner is consistent across his short career. The first is the signed work, anchored by the dated tachi, designated Juyo and later raised to Tokubetsu Juyo, where the temper opens slightly to a medium suguha carrying ko-choji and ko-gunome over a mokume-laden itame. The second is the body of two-character signed and mumei attributions, the slender suguha narrowing further to a fine hoso-suguha in nioi-deki, the ko-ashi entering frequently. One o-suriage mumei katana shows a more standing, hada-dachi itame with ko-gunome, the open end of his range. Because the bare two-character signatures gave the early appraisers so little to work from, his lineage was settled only by the existence of the dated piece, and of one mumei katana given to him the published sources write that it does not show the rank of Sanenaga or Kagemitsu and is closest to Sukenaga.
What sets him apart within that generation is therefore not a personal flourish but the proportion of his features, and this is how the published commentary draws the distinction. His attributions rest on the era and on the resemblance to the Nagamitsu line, read through the slender suguha, the tightening nioiguchi and the threefold boshi rather than through any one showy tell. The mumei blades given to him are described as close to Sukenaga in manner while falling short of the ranking of his more celebrated contemporaries, and the commentary places him among the disciples of Nagamitsu's circle, beside such names as Nagamoto and Sanenaga whose work his own is said to resonate with. He is the quiet voice of late-Kamakura Osafune, the suguha alternative to the school's clove-temper mainstream, and his interest to the connoisseur lies precisely in that restraint set against a jigane that is unmistakably Bizen.
Sukenaga survives in only a handful of designated works, and the published commentary states it directly, that 「同銘の現存するものは少い」[[c:5]], that extant blades bearing this signature are few. The record reaches six designated swords, one at Tokubetsu Juyo, four at Juyo and one at the prewar Juyo Bijutsuhin, with no National Treasures or Important Cultural Properties among them; the dated 1312 tachi the NBTHK calls 「現存稀な長船助長の代表的優品」[[c:6]], a representative superior work by the rarely extant Osafune Sukenaga and a documentary piece of high value. The provenance that survives is distinguished. One of his Juyo tachi descended in the Tokugawa shogunal house, its sayagaki recording its presentation by Lord Takechiyo; a further signed tachi, recorded outside the designation lists, is held by Ise Jingu; and the Juyo Bijutsuhin blade passed through the Osaka collection of Kajima Isao. A privately held Sukenaga is among the less common things a collector of Osafune work could encounter, and when one of his signed or papered blades does appear it does so rarely, a landmark for the steadiness and the rarity together rather than for any extravagance of temper.
Nagamoto (長元) — Mainline · 1293-1299. Jūbun, Jūyō. Nagamoto is traditionally regarded as a disciple of Osafune Nagamitsu, and by some accounts his younger brother. He was active during the late Kamakura period, with dated works from the Shodan era (beginning 1299) confirming his period of production. Critically, there exist tachi bearing Nagamitsu's signature in which the manner of inscription — the *meiburi* — is demonstrably by the same hand as Nagamoto's own signed works. From this evidence it is inferred that Nagamoto served as one of the *daisaku-sha* (substitute smiths) working on behalf of Nagamitsu, the head of their lineage, and that he was among the principal representatives within the Osafune school. Extant signed works by him are exceedingly rare, a circumstance likely attributable to the proportion of his career spent producing blades under his master's name, and possibly to later-generation alterations of the character "moto" to "mitsu."
Nagamoto's style is characterized by slender and gentle *tachi sugata* with pronounced *koshizori* and *funbari*, often terminating in *ko-kissaki*. His *jigane* presents tightly forged *ko-itame-hada*, sometimes mixed with *mokume*, bearing fine *ji-nie* and abundant *chikei*, with *midare-utsuri* standing out prominently. His *hamon* typically centers on *ko-gunome* mixed with *ko-choji* and pointed elements, approaching Nagamitsu's calm manner; alternatively, he produces a quiet *suguha* into which *choji-ashi* are interspersed. The *nioiguchi* tends toward *shimarigokoro* — a characteristic tightness — and the *boshi* frequently becomes shallowly *notare*, turning back in *ko-maru* to form the pattern known as the *sansaku-boshi*. In works of broader temper, deep *nioi* with well-adhering *ko-nie* is accompanied by *sunagashi* and *kinsuji*, yielding a vivid *jiba*.
Within the Osafune lineage, Nagamoto occupies a distinctive position as one whose workmanship, while closely aligned with Nagamitsu's refined idiom, nonetheless displays an identifiable individual manner — a quieter, more restrained approach that distinguishes his hand from that of his master. The NBTHK has repeatedly affirmed that "the characteristic features of this smith are clearly expressed[[c:1]]" in blades attributed to him, and has noted the particular documentary value of his dated works. As a smith of whom very few examples survive, each authenticated work carries heightened significance, and the consistent quality of extant pieces confirms Nagamoto as a capable and accomplished artisan of the first rank within the Nagamitsu circle.
Other smiths
Norimitsu (則光) — Mainline · 1303-1306. The first Norimitsu of Osafune is anchored by a single dated work, a hira-zukuri tanto signed Bizen no Kuni Osafune jū Norimitsu and dated the twelfth month of Kagen 3 (1305), designated Juyo Token at the eighth session. The published sources record that 「初代則光は長光の門人と伝え」 (the first Norimitsu is traditionally said to have been a student of Nagamitsu), and they note that besides this tanto there survive tachi with two-character signatures of the kind seen on Nagamitsu and Kagemitsu, and tachi with a long Bizen no Kuni Osafune jū signature. Of the date itself they write 「この短刀に見るごとき嘉元の年紀は貴珍であり、他には例を見ない」 (a Kagen date such as this tanto bears is a rare treasure, and no other example is known). He is distinct from the far better known Norimitsu of the mid-Muromachi period, the smith of so-called Eikyo-Bizen celebrated as Kansho Norimitsu, whom the sources name only to set the earlier master apart.
The Kagen tanto is a standard *uchi-zori* blade with a somewhat thick *kasane*, recalling a *yoroi-doshi*. Its jigane is *itame* with a tendency to *nagare*, and *midare-utsuri* stands out. The *hamon* is *gunome* mixed with angular, *kataochi*-like *gunome*, with *sunagashi* strongly visible, in *nioi-deki* with a bright *nioiguchi*; the *boshi* runs *midare-komi* and turns back in *ko-maru* with a long return. The sources observe that 「一見地刃の出来が景光を思わせるものがあり」 (at a glance the workmanship of the jigane and temper has something that recalls Kagemitsu). The *bonji* below the *suken* on the *omote* is a later carving.
Two unsigned katana have been given to him on the strength of that manner. One, *o-suriage* and slender with deep curvature, a high *shinogi* and a small *kissaki*, has a tightly packed *itame* with *ji-nie* and *midare-utsuri*, and a temper in a *suguha* tone mixed with small *gunome*, small *choji* and somewhat angular elements in *ko-nie*, with fine *sunagashi* and *kinsuji*. The sources judge these features 「鎌倉末期の備前物の中でも則光にもっとも擬せられるものであり、古則光の所伝は首肯し得る」 (among late Kamakura Bizen works, the ones most readily likened to Norimitsu, so that the traditional attribution to Ko-Norimitsu may be accepted). The other carries a gold-inlaid attribution to Norimitsu with the kiwame of Hon'ami Kokan, eighteenth head of the Hon'ami house. Its *ko-itame* is mixed with *mokume* and densely forged, with fine *ji-nie*, fine *chikei* and *midare-utsuri*; the *hamon* is a florid *midare* of round-headed *choji* with *gunome* and *togariba*, *ashi* and *yo* entering well, *nioi*-dominant with *ko-nie*. For the sources this evokes the main Osafune line of the late Kamakura period, calling to mind 「長光あたりを髣髴とさせるものがある」 (something reminiscent of Nagamitsu and his circle), and they find Kokan's appraisal fully appropriate.
The record of the first Norimitsu therefore rests on three Juyo works: one signed and dated tanto in the angular *gunome* manner of Kagemitsu, and two attributed katana that show *midare-utsuri* throughout and a temper ranging from a restrained *suguha*-based *ko-midare* to the full *choji* of Nagamitsu's school.
Kageyasu (景安) — Mainline · 1288-1293. Kageyasu of Bizen is known from six designated blades, five Juyo and one prewar Juyo Bijutsuhin, and from the old genealogies that place him among the Osafune smiths. The Kokon Meizukushi and the Tensho-bon Meizukushi list him beside Kagehide and Kagenori, as the son or pupil of Kagehide, the younger brother of Mitsutada. The published sources at once qualify that placement: "Kageyasu's work does not resemble Kagehide's"[[c:1]], and some of it reads like Ko-Bizen.
The question of where he belongs runs through every paper. Same-name smiths are recorded in Ko-Bizen, Ichimonji, Osafune and Yoshii, and the published sources say the line and the dating both remain open to study. One paper explains that, because extant Kageyasu show a manner shared with Ko-Bizen, he is provisionally handled as Ko-Bizen. Others decide blade by blade: of one tachi they write that angular elements mixed into the temper here and there mark it "as belonging to the Kagehide group"[[c:2]], and of an ubu tachi that "it is not seen as Ko-Bizen; it is proper to regard it as of the Kagehide school"[[c:3]].
His character lies in the hamon. Over an *itame* that stands a little, with *ji-nie* and a rising *midare-utsuri*, he tempers *choji* mixed with *gunome* in a small *midare* whose elements turn angular. *Ashi* and *yo* enter, the *ko-nie* is applied evenly, and *kinsuji* and *sunagashi* run through it. The published sources name the angular small gunome-based midare as "the great feature" of his work[[c:4]], and of one blade they write that it is "a fine work with a clear, bright temper"[[c:5]]. The *boshi* runs straight to a *ko-maru*.
A second manner keeps closer to *suguha*. The temper stays suguha-based with small gunome and small choji mixed in, small ashi entering and ko-nie well applied, over a flowing itame with midare-utsuri. Of a kodachi in this manner the published sources write that it is "a piece that brings the Ko-Bizen manner to mind"[[c:6]]. The two manners are not dated against each other in the record.
His blades are slender tachi with *koshizori* and *fumbari* and a small *kissaki*, most of them shortened by suriage with the signature preserved at the tang tip. The signature is a two-character mei, and the published sources note that "a two-character mei cut with a rather thick chisel is usual"[[c:7]]. A single *unokubi-zukuri* tanto stands apart in form, its fukura thin and its inward curve sharp, and they call it "a typical work of the smith in both ji and ha"[[c:8]]. That paper also sets his period: "his time is thought to be no later than that of Nagamitsu"[[c:9]].
For the collector, Kageyasu is a smith of the record rather than of the market. His six designated blades are five Juyo tachi and tanto and one Juyo Bijutsuhin tachi formerly held by Hosokawa Moritatsu. A signed Kageyasu comes to light only rarely, and its interest lies as much in the open question of his school as in the angular small midare that identifies his hand.
Kageyori (景依) — Mainline · 1278-1288. A signed tachi inscribed Bishū Osafune Kageyori, designated Jūyō Tōken in the 51st session, fixes this Kageyori in the Osafune school of Bizen at the close of the Kamakura period, where the published sources place him traditionally as a son of Kagehide, active around the Einin era. The name itself is one of the kantei problems of late Bizen. The reference works enumerate more than one smith signing Kageyori in the province, listing the name among the Ko-Bizen group, the late offshoots of Ko-Bizen, the Osafune school, and the founders of the Yoshii line, so that a Kageyori blade is read by its own *ji* and *ha*, the form of its signature, and the very shape of the character *yori* (依) before it is assigned a hand. This Osafune Kageyori is the most fully readable of them, his signed and dated record carrying the old-Bizen *jigane* and *utsuri* into the choji manner of late Osafune, with the calmer suguha of the same circle running beside it.
The Osafune tachi is the richest statement of his hand. The sugata is somewhat wide with a pronounced taper from base to tip, *suriage* yet keeping its *koshizori*, with a *chū-kissaki*. The temper is a *chōji* base mixed with *gunome*, *kataochi*-like *gunome*, and *togariba*, lower and more straight-tending toward the *machi*, the whole running *saka-gakari*. Within it *ashi* and *yō* enter, the line is *nioi*-dominant with *ko-nie* and in places rougher *nie*, and fine *kinsuji* and *sunagashi* play through a bright *nioiguchi*. The published sources read the rounded-headed choji crossed with kataochi-gunome as the very character of late-Kamakura Osafune work, and single out the pointed teeth as inherited from his father: 「尖り刃は父景秀の遺風を想わせる」[[c:1]], the conspicuous *togariba* in the *ha* recalling the bequeathed manner of Kagehide. It is this *togariba* in a choji-gunome field, and not a plain late-Osafune clove, that ties the blade to the Osafune line.
The *jigane* is old Bizen carried into Osafune. Over a well-packed *ko-itame*, in places mixed with *mokume* and on the longer tachi inclining to stand a little, he sets a dust-fine *ji-nie*, delicate *chikei*, and a *midare-utsuri* standing clear in the steel. On the *gaku-mei* wakizashi the reflection takes a streak-like form, with the patchy *jifu-utsuri* of old Bizen visible in the lower half, the forging there tightly wrought and refined. The *bōshi* answers the temper rather than templating it: on the Osafune tachi it is *midare-komi*, *yakizume*-like on the *omote* and turning back with a pointed tendency on the *ura*; on the suguha pieces it goes straight into a *ko-maru*. He carves *bō-hi* on the wakizashi and, on one tachi, a plain *suken* on the *omote* with *gomabashi* on the *ura*.
Beside the flamboyant choji runs a second register, the calm suguha of the late-Kamakura Bizen circle. The *gaku-mei* wakizashi, signed Kageyori saku and read from its overall workmanship as a late Ko-Bizen offshoot of around the Kōan years, tempers a *suguha-chō* with an extremely shallow *notare*, mixed with *ko-gunome*, into which *saka-gokoro ko-ashi* and *yō* enter, the *nioiguchi* tight and *ko-nie* adhering. The published sources call its *ji* and *ha* a thing that recalls Osafune work of the late Kamakura period, refined in feeling, and prize the piece for documenting the working range of the name, noting that it is 「資料性も高い」, high too in its documentary value. The most striking of the suguha blades is an *ubu* tachi the published sources assign, from the style of *ji* and *ha*, the small finely chiseled characters, and the form of the character *yori*, to a Nitta-no-shō smith whose surviving works are extremely few. Notably long, with a high *koshizori* and *funbari*, it shows a *ko-itame* with *ko-mokume* standing overall, a dark steel color, and a faint *midare-utsuri*; the suguha mixes slight *ko-gunome*, the *habuchi* frays in fine *nie-hotsure*, the *nioiguchi* tightens and sinks toward *shizumi*, and the temper drops in *yakiotoshi* above the *machi*.
The range of the name is best seen against itself. The bright Osafune choji and the sunken, *yakiotoshi*-bearing suguha are the two faces of the late-Kamakura Kageyori, the one read as 「鎌倉時代後期の長船物らしさ」[[c:2]], the look of late-Kamakura Osafune, the other carried so far from it that the published sources judge the Nitta tachi, with its crepe-like dark *jigane* and subdued straight temper, 「一見古青江の上作を思わせる」[[c:3]], recalling at first glance a superior Ko-Aoe work. What holds the hands together is the old-Bizen *jigane* beneath both, the well-packed *ko-itame* with its *ji-nie*, *chikei*, and standing *midare-utsuri*, and it is the *jigane* and the form of the signature, far more than any single temper, on which each attribution rests. The earlier Ko-Bizen Kageyori, known by a boldly cut large two-character signature over a *nie-deki* ko-midare, stands a generation back from this Osafune hand, the same name read across the whole arc from old Bizen into the Osafune school.
Kageyori survives in a small but high designated record. The *Tōkō Taikan* values his work in the mid range, and Fujishiro assigns him no grade. Two signed tachi and the *gaku-mei* wakizashi are designated Jūyō Tōken, one tachi given to the Osafune Kageyori said to be Kagehide's son, the other the *ubu* Nitta-no-shō tachi noted for its rarity; two further tachi were recognized as Jūyō Bijutsuhin before the war, one bold-signed and judged Ko-Bizen, the other placed around Einin. There are no National Treasures or Important Cultural Properties on this code's record, so the name lives entirely within the upper designated tiers rather than in museum patrimony. The recorded provenance is private and sparse, the prewar Bijutsuhin tachi held in the Tokyo collections of Kodama Sawako and of Yasuda Yoshihiko, with a Tsuchiya-family blade among the denrai. Across the Tokubetsu Jūyō and Jūyō tiers only the three blades are recorded, and the most distinctive of his hands, the Nitta-no-shō tachi, is by the published account extremely few in survival, so a signed Kageyori in private hands is among the rarer encounters in early Bizen, appearing, when it appears at all, only with patience.
Masanaga (將長) — Mainline · 1324-1326. Smith of the founding Ko-Osafune period.
Mitsuchika (光近) — Mainline · 1288-1293. Smith of the founding Ko-Osafune period.
Tamenaga (爲長) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Yasuhiro (保弘) — Mainline · 1306-1308. One tachi by Yasuhiro carries the date Tokuji 2 (1307), 10th month, and signs in full 'Bizen no Kuni Osafune-jū Ukon Shōgen Yasuhiro saku'[[c:1]], fixing him to the late Kamakura years at Osafune. The published sources place him there working at almost the same time as Kagemitsu, with dated pieces surviving from the Shōan and Tokuji eras, and they are careful to add that he styled himself Ukon-no-shōgen and Sahyōe-no-jō. Few of his works remain. The point the published record returns to on every blade is that although he lived at Osafune his manner of signing differs from the orthodox main line of Nagamitsu, Kagemitsu and Chikakage, a difference that the sources read as one of lineage rather than of period; one Jūyō commentary states it plainly, that the way he signs 'differs from that of Kagemitsu and also from Chikakage, suggesting a difference in lineage from the main line.' He is thus a contemporary of the great Osafune names who stands a little apart from them, and his blades are weighed against their work as the measure of his standing.
The keynote that separates Yasuhiro from those names is the temper itself. Where the orthodox Osafune of his generation builds a flamboyant chōji and gunome midare, Yasuhiro tempers on a suguha base across the whole of his surviving body. The representative long tachi takes a suguha at the monouchi with small ashi, opening below into a suguha-based temper mixed with small gunome and small chōji, with small ashi and yō entering and small nie adhering. The same calm hand recurs from blade to blade, the disorder always worked within the straight line rather than displacing it, so that the small gunome, small chōji and occasional gunome read as activity inside a suguha rather than as a midare in its own right. Against the choji-heavy mainstream this suguha keynote, taken together with his off-line signature, is the feature a collector reads first.
Over an itame jigane with ji-nie he raises the Bizen reflection that places him securely in his school. On the representative tachi a midare-utsuri stands distinct and clear; on a shortened katana it appears only faintly, and in the monouchi on the sashi-omote it takes on a stepped dan-utsuri aspect, the variegated reflection of late-Kamakura Osafune steel. The bōshi runs straight throughout, turning back in a shallow ko-maru. The forging itself divides his work into two hands. On his most controlled blades the steel tightens to a well-worked ko-itame with chikei entering and the nioiguchi drawn tight and clear, and the published sources judge this register close in ji and ha to the contemporary orthodox Osafune, well-fleshed in niku and sound. On his more individual blades the itame is mixed with mokume and stands somewhat, flowing toward masame, the habuchi roughened in places, with kinsuji and sunagashi active across the temper; of one such tachi the sources write that compared with the contemporary orthodox main line the ji and ha show 'a somewhat more rustic character, noteworthy as an example that demonstrates one facet of Yasuhiro's individual style.'
The small corpus is therefore best read along that two-pole axis rather than by period. At one pole stands the refined hand, the tight ko-itame and the clear, controlled suguha that the published sources set beside the orthodox work without finding it short; the representative tachi belongs here, judged sound in construction and in both jihada and hamon, a piece they call one that 'does not fall short even when compared with the orthodox Osafune main line, a representative superior work by Yasuhiro.' At the other pole stands the rustic hand, the standing masame-leaning itame with its kinsuji and sunagashi, the manner the sources name his own individual style. Orthogonal to both runs the signature, the feature that fixes the attribution and the lineage at once: the corpus divides between the full long signature with title and date, as on the Tokuji 2 tachi, and the bare two-character mei, while two of the blades are shortened and carry their original signature folded over as an orikaeshi-mei, on one of them the lower character now indistinct.
His distinction is drawn most surely from his own attested traits, not from the mainline by contrast. The suguha base with its small gunome and small chōji, the midare-utsuri shading toward dan-utsuri over an itame jigane, the ko-maru bōshi, and on his individual pieces the rustic masame-leaning forging with kinsuji and sunagashi are the marks that set him apart from the chōji-dominant Osafune mainstream. The published record is candid about where this places him. On the Tokuji 2 tachi the appraiser Honma noted that his technical level is reckoned below Kagemitsu and Chikakage, and that the blade was accepted for designation on account of its rarity, adding that the Tokuji 2 date is itself of great documentary value. No successor line is drawn from him; the surviving body is too small and his lineage too peripheral for the record to carry the school forward through his hand, and he is read as a discrete late-Kamakura Osafune smith whose value lies in his position beside the main line.
The whole of Yasuhiro's record stands at the level of designation a private collector can realistically meet, three blades among the Important Sword tier and two among the prewar Important Art Objects, with no National Treasure and no Important Cultural Property among them, and the connoisseurship of his name rests on documentary value as much as on artistry. Provenance is thin but real. The representative tachi is accompanied by a Hon'ami Kōchū origami of the Kyōhō era assigning it a valuation of one thousand kan, and the prewar Important Art Object certifications record owners in Tanaka Taisuke of Osaka and Hon'ami Sumio of Tokyo. No institutional holder is named in the published record of his blades, which is consistent with a smith known through a handful of designated survivals rather than through famous collections. What such a collector might encounter is confined to that small designated body, the long signed tachi prized first as evidence of so rare and so exactly dated a hand, and the shortened katana carrying its folded signature. Pieces of this kind are held far more often than traded, and a signed Yasuhiro, dated and off the orthodox line, is among the less frequently met of the late-Kamakura Osafune hands, a documentary landmark when one does appear.
Yukizane (行眞) — Mainline · 1260-1261. Smith of the founding Ko-Osafune period.
Kagesada (景定) — Mainline · 1332-1334. Smith of the founding Ko-Osafune period.
Kaneie (包家) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Kanenaga (包長) — Mainline · 1299-1302. Smith of the founding Ko-Osafune period.
Kunizane (國眞) — Mainline · 1238-1239. Smith of the founding Ko-Osafune period.
Munemitsu (宗光) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Nagachika (長親) — Mainline · 1321-1335. Smith of the founding Ko-Osafune period.
Nagayoshi (長吉) — Mainline · 1250-1333. Osafune Nagayoshi of the Kamakura period is known through an *ubu* tachi with a two-character signature, designated Juyo Token at the 17th session in 1968. The published sources open by separating him from his namesakes: there are smiths called Nagayoshi in many provinces, and within Bizen one in the Chogi group as well (「長吉は同名が諸国にあって、備前でも長義一派にも同名があり」), whom the meikan record as the son of Nagashige, of the Shitoku era. This tachi points elsewhere: 「この長吉は一見して、鎌倉中期から末期にかけての長船長光一門の作と鑑せられ、一門の特色が、刃文にも帽子にも見られる」 (at a glance this Nagayoshi is judged the work of the Osafune Nagamitsu group of the mid to late Kamakura period, and the group's features appear in both the temper and the *boshi*).
The tachi is *shinogi-zukuri* with an *iori-mune*, a high *koshizori* and a *chu-kissaki*, with a blade of 74.0 cm. Its *jigane* is *itame* with a flowing tendency and standing grain, with *midare-utsuri*. The temper is a *nioi-deki choji-midare* mixed with *ko-midare* and *gunome*, with *ashi* and *yo* entering well and some *sunagashi*. The *boshi* runs in with a *ko-maru* tip. The ubu tang has a *kurijiri*, *katte-sagari* file marks and four peg holes, one of them a *shinobi-ana*, with the signature above the holes along the back.
No entry in the old meikan corresponds to this smith. The published sources call him 「いわゆる銘鑑漏であるが、恐らく長光の代表者の一人と思われ、作刀が極めて少いところから、そうなったものであろうか」 (a so-called omission from the directories, probably one of the representative smiths of Nagamitsu's circle, the omission perhaps arising because his extant works are extremely few). They value the tachi accordingly: 「銘鑑の欠を補う好資料でもある」 (it is also good material for filling a gap in the directories).
Sukemitsu (助光) — Mainline · 1324-1326. Smith of the founding Ko-Osafune period.
Arikuni (有國) — Mainline · 1247-1249. Smith of the founding Ko-Osafune period.
Aritsuna (有綱) — Mainline · 1247-1249. Smith of the founding Ko-Osafune period.
Ariuji (有氏) — Mainline · 1247-1249. Smith of the founding Ko-Osafune period.
Arizane (有眞) — Mainline · 1247-1249. Smith of the founding Ko-Osafune period.
Chikatsune (近恒) — Mainline · 1288-1293. Smith of the founding Ko-Osafune period.
Hisamune (久宗) — Mainline · 1288-1293. Smith of the founding Ko-Osafune period.
Kagemune (景宗) — Mainline · 1260-1261. Smith of the founding Ko-Osafune period.
Munenaga (宗長) — Mainline · 1317-1319. Smith of the founding Ko-Osafune period.
Nagamitsu (長光) — Mainline · 1278-1299. Smith of the founding Ko-Osafune period.
Nagamune (長宗) — Mainline · 1293-1299. Smith of the founding Ko-Osafune period.
Nobuyasu (信安) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Norinaga (則長) — Mainline · 1243-1247. Smith of the founding Ko-Osafune period.
Noriyasu (則安) — Mainline · 1243-1247. Smith of the founding Ko-Osafune period.
Sanefusa (眞房) — Mainline · 1319-1321. Smith of the founding Ko-Osafune period.
Sanemori (實守) — Mainline · 1288-1293. Smith of the founding Ko-Osafune period.
Tadasada (忠貞) — Mainline · 1243-1247. Smith of the founding Ko-Osafune period.
Tadatsugu (忠次) — Mainline · 1299-1302. Smith of the founding Ko-Osafune period.
Tadatsugu (忠次) — Mainline · 1303-1306. Smith of the founding Ko-Osafune period.
Tamehisa (爲久) — Mainline · 1261-1264. Smith of the founding Ko-Osafune period.
Tamemune (爲宗) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Tamemune (爲宗) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Tameyasu (爲安) — Mainline · 1278-1288. Smith of the founding Ko-Osafune period.
Tameyoshi (爲吉) — Mainline · 1278-1288. Smith of the founding Ko-Osafune period.
Toshimitsu (俊光) — Mainline · 1312-1317. Smith of the founding Ko-Osafune period.
Toshimune (俊宗) — Mainline · 1299-1302. Smith of the founding Ko-Osafune period.
Tsuguhiro (次弘) — Mainline · 1288-1293. Smith of the founding Ko-Osafune period.
Yasutada (安忠) — Mainline · 1239-1240. Smith of the founding Ko-Osafune period.
Yoriuji (依氏) — Mainline · 1303-1306. Smith of the founding Ko-Osafune period.
Yoshinaga (吉長) — Mainline · 1317-1319. Smith of the founding Ko-Osafune period.
Yoshitada (吉忠) — Mainline · 1324-1326. Smith of the founding Ko-Osafune period.
Phase 2 · Sōden-Bizen (相伝備前) · 1330 – 1394
The Soden Bizen school encompasses the group of Nanbokucho-period Osafune smiths in Bizen Province whose work absorbed the technical influence of the *Soshu-den*, producing a distinctive synthesis that stands apart from both orthodox Bizen and pure Sagami practice. The school divides into two principal lineages: the Kanemitsu group, representing the direct main line of Osafune that descends from Mitsutada through Nagamitsu and Kagemitsu; and the Chogi group, a collateral branch whose members carried the Soshu idiom to its most expressive extremes within Bizen. Kanemitsu, the *chakuryu* heir of Kagemitsu, pioneered the broad, relaxed *notare*-based *midare* that defines the mature Nanbokucho Osafune manner, while Chogi -- described by the NBTHK as the smith "who departs furthest from Bizen" among Bizen makers -- pushed nie-dominant forging to a level that rivals the output of the great Sagami smiths themselves. Together with disciples and contemporaries including Tomomitsu, Motomitsu, Masamitsu, Yoshimitsu, Kanenaga, Nagashige, and Nagamori, they constitute one of the most prolific and technically accomplished groups in the history of Japanese swordsmithing.
The school's collective technical identity is anchored in a shared *jigane* of *itame-hada* mixed with *mokume*, with fine *ji-nie* adhering thickly, *chikei* entering well, and *midare-utsuri* standing out -- a persistent Bizen hallmark that survives even in the most Soshu-inflected work. The *sugata* overwhelmingly reflects the grand Nanbokucho *taihai*: wide *mihaba* with little taper between base and tip, and an extended *chu-kissaki* or *o-kissaki* conveying martial vigor. Within this shared framework, two distinct temperaments emerge. The Kanemitsu lineage favors a *nioi*-dominant or *nioi-gachi* construction: Kanemitsu's characteristic *notare* mixed with *gunome*, *ko-gunome*, and angular elements yields a broad, unhurried temper with bright *nioiguchi*, while his successors Tomomitsu, Motomitsu, and Masamitsu each modulate the master's vocabulary -- Tomomitsu through a relaxed notare with slightly pointed crests, Motomitsu through conspicuous *kataochi-gunome*, and Masamitsu through a resolution into "comparatively small-patterned designs." Yoshimitsu likewise inherits the small-pattern tendency, producing *ko-gunome* mixed with *ko-choji* whose restraint the NBTHK praises as "upper rank" Soden Bizen. The Chogi lineage, by contrast, emphasizes powerful *nie* in both *ji* and *ha*: Chogi's flamboyant large-scale *midare* weaves together *gunome*, *choji*, *togariba*, and *koshi-hiraki* forms with *tobiyaki* and *yubashiri* scattering freely, while *kinsuji* and *sunagashi* streak through the hardened edge. His student Kanenaga carries this further still -- "a step more animated and bustling," with nie "thicker and at times coarser." Nagashige, now thought to be Chogi's elder brother rather than his junior, works a gentler, smaller-patterned midare yet with nie so strong as to "even surpass Chogi," while Nagamori occupies an intermediate position, his "somewhat smaller patterning" accompanied by rich internal activity.
The historical significance of the Soden Bizen school lies in its demonstration that the Soshu influence, far from merely displacing Bizen conventions, catalyzed an extraordinary expansion of the Osafune repertoire. Kanemitsu's achievement -- the creation of the broad notare idiom on a foundation of refined Bizen forging -- is consistently credited as the defining innovation of Nanbokucho-era Osafune, while Chogi's boldest work transcends its provincial identity so thoroughly that it "could be mistaken for a Soshu work." The NBTHK's evaluative language across the school converges on consistent themes: the forging is "meticulous" and "excellent-quality," the *nioiguchi* "bright and clear," and the finest examples display a *kenzen* condition that attests to the soundness of Bizen steel at its peak. The abundance of dated inscriptions -- from Kanemitsu's forty-five-year span through Masamitsu's four-decade career extending into the early Muromachi period -- provides an unusually well-documented chronological framework, with later works by Masamitsu and Yoshimitsu pointing toward the subsequent development of Oei Bizen. Within the broader canon, the Soden Bizen school stands as the fullest realization of the creative possibilities that emerged when two of Japan's greatest forging traditions met and merged.
Kanemitsu (兼光) — Mainline · 1323-1370. Jūbun, Jūbi, Tokujū, Jūyō. The published sources open their account of Kanemitsu with one fixed sentence: he is "the mainline heir of the Osafune school, following Kagemitsu"[[c:1]]. Son of Kagemitsu and fourth master of the line that runs from Mitsutada through Nagamitsu and Kagemitsu, he stands as the leading Bizen smith of the Nanbokucho period. His dated works span what the NBTHK calls an unusually long period, roughly forty-five years from Genko 1 (1321) at the close of the Kamakura period through the Joji era (1362-1368), and some designations carry the span to Oan and read it as fully fifty years. So long a working life raises, in the sources' own framing, the question of a first and a second generation, with no settled view as to where the division should fall; the later master is known to the record as "Enbun Kanemitsu"[[c:2]].
His hand divides at a watershed the published sources place in the Jowa and Kan'o eras (1345-1352). Until around Koei both tachi and tanto keep standard proportions, tempered either in a suguha tone mixed with gunome or in the kataochi-gunome he inherited from his father, work that in the recurring judgment of the designations "wholly follows the father Kagemitsu's manner"[[c:3]]. From Jowa and Kan'o the build turns grand, and the sentence nearly every later designation repeats takes over: "a notare-dominant hamon that had not existed before appears, and is met most often around Bunna and Enbun"[[c:4]]. The broad, unhurried notare and the angular kaku-gunome are alike singled out as "what Kanemitsu excelled in"[[c:5]], and one Tokubetsu Juyo description calls the angular gunome "the construction he favored from first to last"[[c:6]]. Against the rounder returns of the earlier mainline, his boshi runs in midare, often thrusting up before a pointed tip.
Even at the grand scale the forging holds. The jigane is itame mixed with mokume, and the NBTHK remarks of one Tokubetsu Juyo katana that it shows not the slightest loosening or coarseness of the surface pattern from base through tip. Fine ji-nie adheres thickly, fine chikei enter, and a midare-utsuri stands out, often called vivid, the steel bright; on the early ubu-signed pieces the reflection is rather a sugu-utsuri or bo-utsuri over a tight ko-itame. The temper is for the most part nioi-dominant with ko-nie. Kinsuji and sunagashi gather toward the koshimoto, small tobiyaki and yubashiri-like effects appear in places, and ashi and yo enter freely. To this he adds a distinctive program of carving: bonji, gomabashi and suken, and above all the cursive grass-style kurikara[[c:7]], a composition the sources note recurs on works of Kanemitsu and Tomomitsu, and at times Chikakage.
Most of what survives from the late phase is the o-suriage mumei katana of the Enbun-Joji build: wide in mihaba with little taper from base to tip, the kissaki large, the sori shallow or moderately deep. Beside it stand the sunnobi hira-zukuri tanto and ko-wakizashi, broad and thin with shallow sori, and the long hira-zukuri blades signed on the sashi-omote, made as uchigatana from the outset, of which the Uesugi "Suijin-giri"[[c:8]] is the recorded example. Signed work is plentiful for so heavily shortened an oeuvre, one hundred seven signed against ninety-five unsigned among the blades gathered here, the long signatures reading Bizen no Kuni Osafune-ju Kanemitsu[[c:9]] or Bishu Osafune-ju Kanemitsu[[c:10]], many with dates. The strengthened nie of the late manner the sources read with their own hedge, "possibly under the influence of the Soshu tradition"[[c:11]], adding that "since the nie also is emphasized, the work is known in the world as Soden-Bizen"[[c:12]]. The older designations go further only as a question: one Juyo note finds in the turn to notare "the relation to Soshu Masamune, together with the succession of a first and second generation"[[c:13]], the Masamune-pupil tradition held open, never asserted. Honma's inventory of the Imperial collection frames the same question from dated work: a Koei tanto reads almost like Kagemitsu, while a Bunna wakizashi is already a grand hira-zukuri in a notare suggesting the Soshu tradition, so that where to divide a first and second generation remains a problem[[c:14]], since such work exists with a Bunna date. The many shortened mumei blades carry kinzogan attributions of the Honami line, Kotoku and Koson among them, which the NBTHK in case after case upholds.
Within Bizen his place is fixed by what he carried and what he introduced. The kataochi-gunome descends to him through Kagemitsu alone within the school's mainline, and the notare is his own addition, the broad, unforced midare that, in the words of one Tokubetsu Juyo description, this smith pioneered among Bizen craftsmen. His grand manner passes into late Osafune through his circle: the published sources read related blades as work of the sphere surrounding Kanemitsu, and the cursive kurikara he favored recurs in Tomomitsu.
Fujishiro grades him Sai-jo saku, and two hundred thirty-five designated works stand on record, four of them recorded in Honma's inventory of the Imperial collection. No National Treasure is among them, but thirteen blades hold the rank of Important Cultural Property, and the named swords cluster there: the meibutsu O-Kanemitsu (大兼光) and the tachi of Uesugi Kagekatsu's hand-picked thirty-five, both cited in the record as Important Cultural Properties, and the meibutsu Nami-oyogi Kanemitsu (波游兼光), whose gold inlay records the ownership of Hashiba Okayama Chunagon Hideakira, identified as Kobayakawa Hideaki. Forty of his blades hold the Tokubetsu Juyo rank, the most of any swordsmith, and with the Juyo blades the two tiers carry two hundred two. The provenance roll is deep, sixty-four blades with recorded histories: Ashikaga Takauji, Uesugi Kenshin and Uesugi Kagekatsu, Toyotomi Hideyoshi, Todo Takatora, and the Kuroda, Date, Hosokawa, Maeda and Owari Tokugawa houses; one Juyo katana went to Tokugawa Iemitsu as the bequest of Sugihara Hoki no Kami Shigenaga, and another descended in the Masuda family, hereditary elders of the Choshu domain, and a Kanno tanto of the Honma inventory was formerly held at Danzan Shrine. The Important Cultural Property and Juyo Bijutsuhin pieces rest as patrimony in shrines, museums and long-held collections, the Tokugawa Art Museum, the Sano Art Museum and Eisei Bunko among recorded holders. For the collector the field is less closed than with most names of this rank: blades of the Tokubetsu Juyo and Juyo tiers, many of recorded private whereabouts, appear from time to time. Yet most are held rather than traded, and a signed and dated piece of either phase is a landmark when it comes.
Chogi (長義) — Chōgi group · 1356-1379. Jūbun, Jūbi, Tokujū, Jūyō. Chogi (長義) was the leading Bizen smith of the Nanbokucho age, a master whom the published sources name in the same breath as Kanemitsu as one who, together with Kanemitsu, displayed outstanding skill among the many Bizen smiths of the period grouped under the appellation Soden-Bizen. One tradition transmits him as a descendant of the Osafune mainline smith Sanenaga, and the dated blades that survive run from the Jowa years through Koryaku, so his career sits squarely in the high Nanbokucho decades of Enbun and Joji. Whether the latest dated work is his own the sources leave open: one paper records that "by one account the Kōryaku works are the second generation"[[c:1]], and an unsigned katana judged a Kōryaku second Chōgi is described as "somewhat different in manner from the first"[[c:2]], but no division of his blades has been settled, and the record is kept here as one. The sources draw a clear line between two faces of his work, one in which nioi prevails and one in which the nie of the jigane and hamon runs strong, and it is the second of these that earned him the phrase repeated again and again across his papers, that of all Bizen smiths Chogi is the one whose work departs furthest from Bizen.
The first thing to look for is not a borrowed resemblance but his own typical hand. Over a base of notare he tempers a bold, varied midare in which gunome, choji, angular ha and pointed togari elements crowd together, and at intervals two gunome lean head to head into an ear shape, the mimigata that the sources single out as the form to watch for in his work. On the Shotoku wakizashi the judges write that the notare-toned hamon mixing ear-shaped ha is this smith's typical work, and on a signed tanto they describe the notare ha whose head splits in two into the ear-shaped ha. This is the surest Chogi tell, more reliable than any single famous comparison, because it recurs across signed and attributed blades alike and belongs to no other hand in quite this form.
Within the temper the activity is profuse and Soshu in feeling. Ashi and yo enter freely, the nie gathers thick and at times clustered, kinsuji and sunagashi run through the ha, and tobiyaki and yubashiri drift above it, so that the nioiguchi is now bright, now slightly subdued. The judges note that in his nie-strong work the Soshu manner is emphasized even more than in Kanemitsu, which is precisely why the old saying about the most un-Bizen of Bizen smiths attaches to him. Yet the hamon never loses its Bizen footing, and the choji and mountain-shaped clusters keep the reading anchored in the province.
The jigane answers the temper. The itame stands, often a touch hada-tatsu, carries thick ji-nie and abundant well-entering chikei, and beneath the Soshu fire a midare-utsuri rises, faint on some blades and vivid on others. It is this doubling, Soshu nie worked into a jigane that still throws a Bizen utsuri, that lets a Chogi be read at sight, and the sources say plainly that his forging lays thick ji-nie over itame and mixes in chikei. The boshi follows the disorder of the ha. It runs midare-komi, often turning pointed in togari, with hakikake sweeping the tip and at times a thrusting-up tsukiage before a short ko-maru turn-back, a strong and restless point that the judges repeatedly single out for its force.
The shape is the grand Nanbokucho figure, broad in the mihaba with little taper from base to tip, shallow in the sori and extended into an o-kissaki, imposing and o-buri. Most of his surviving blades are osuriage-mumei o-dachi later shortened, their bearing still vividly of the Enbun and Joji peak, and among the signed work are fine nie-rich tanto and a dated tanto of Oan. The most celebrated piece is the Yamanbagiri Chogi, an Important Cultural Property and the very blade that Horikawa Kunihiro famously copied, though that history comes from outside the published sources rather than from the catalog records themselves.
For the collector Chogi is, by the measure of a name this great, comparatively within reach. Fujishiro grades him Sai-jo saku, and he holds no National Treasure, but five of his blades are Important Cultural Properties and a strong body of his work carries Tokubetsu Juyo and Juyo papers, with thirty-two at the Tokubetsu Juyo tier. The provenance is illustrious: blades descend through the Mito Tokugawa and Kishu Tokugawa houses, one passed through the Hori family of the Iida domain in Shinano and the collection of Ito Miyoji. Held across public institutions and long-private hands, a Chogi surfaces only occasionally, and is a major acquisition whenever it does.
Motoshige (元重) — Motoshige group · 1316-1363. Jūbun, Jūbi, Tokujū, Jūyō. The dated work of Osafune Motoshige opens with a tantō inscribed Shōwa 5 (1316) and closes in the Jōji era of the mid Nanbokuchō period, a span of some fifty years. Across this interval the published sources allow a first and a second generation, while noting that no settled consensus exists as to where the boundary falls. On one point the record is constant: Motoshige of the Osafune group in Bizen was a smith of a line distinct from Kanemitsu and Chōgi. The old genealogies derive the line instead from Hatakeda Moriie: the son of the second-generation Moriie was Morishige, and Morishige's son was Motoshige. He stands apart both from the Osafune mainline of Mitsutada and Nagamitsu and from the houses beside him, and the individuality of his blades answers to that separate descent.
The manner the published sources assign him returns almost word for word. The forging mixes flowing *masame* and *jifu*; in the *hamon*, angular *gunome* stand out over a *suguha* tone, and the whole slants in *saka-gakari*; within the temper work *saka-ashi* and *yō*; the *bōshi* becomes pointed. The notes conclude that "the viewing points of this smith and his school lie precisely in the point where the Aoe temperament is mixed in"[[c:1]]. The squared teeth are the most personal of these marks: the sources describe "angular gunome with the yakigashira aligned in a straight line, peculiar to this smith"[[c:2]], read most clearly around the *monouchi*. The *nioiguchi* tends toward tightness with *ko-nie*, and fine *kinsuji* and *sunagashi* thread the *ha*.
The *jigane* is an *itame* mixed with *mokume* and flowing grain, standing somewhat across the surface. Very fine *ji-nie* attaches, fine *chikei* enter, *jifu* is interlaced, and a *midare-utsuri* rises, often vividly. His *uchi-zori* tantō are forged in *ko-itame* with a slight flowing tendency, and the refined forging of his best tachi appears at a glance almost a pure *ko-itame*.
The record divides into clear registers. An earlier group of thick-chiselled two-character signatures on the *haki-ura*, called Ko-Motoshige and represented by a Jūyō Bijutsuhin tachi dated Kagen 2 (1304), the sources hold to be a different and somewhat earlier man than the long-signature Osafune Motoshige, whether the ancestor of the line or a smith connected with Aoe; those blades are recorded under their own entry. His own dated Kamakura work runs from Shōwa 5 through Karyaku into Kenmu: tantō of standard proportions with *uchi-zori*, in *kataochi-gunome* so close to the older manner that one dated blade reads "almost as though one were viewing the work of Kagemitsu"[[c:3]]. From the Nanbokuchō years the build turns grand: wide *mihaba* with little taper, shallow *sori*, a large *kissaki*, the Enbun and Jōji stance. The bulk of what survives answers to it as *ō-suriage* unsigned katana; among the signed pieces stands an ubu tachi of 94.45 cm preserving the full form of the period. Edo tradition counted Motoshige among the three sages of Sadamune (貞宗三哲) beside Nobukuni and Hōjōji Kunimitsu, a claim the published sources find "hard to credit out of hand"[[c:4]]: most of his surviving work is plainly Bizen, with fewer Sōshū-tinged pieces than Kanemitsu or Chōgi. The exception is real: in the wakizashi transmitted in the Shimazu family, an Important Cultural Property, the *nie* of *ji* and *ha* grows extraordinarily strong and *chikei* and *kinsuji* stand out.
A blade of his may show "at a rough glance a manner that could be taken for Aoe"[[c:5]]; yet the angular teeth aligned at the *yakigashira* and the vividly standing *midare-utsuri* return the appraisal to Motoshige, a Bizen temperament at base that wears the air of neighboring Bitchū. Against Kagemitsu, to whom the old books liken him, the wider *ha*, the pointed *bōshi* and the loosened flowing *masame* and *jifu* in the *jigane* reveal "the individuality of a Motoshige whose line differs from that of Kagemitsu and his kind"[[c:6]]. The same viewing points are shared, the notes add, by his school, Shigezane and the rest, who carried the squared, slanting manner through the Nanbokuchō period.
He is rated Jō-jō saku in Fujishiro's grading, and 153 designated works stand on record: seven Important Cultural Properties, eight Jūyō Bijutsuhin, one long *ubu* tachi of the Kan'ō era recorded in Honma's inventory of the Imperial collection, and 137 blades across the Tokubetsu Jūyō and Jūyō tiers, twenty-one of them Tokubetsu Jūyō. Unsigned blades outnumber signed ones, ninety-nine against forty-nine, so he is met most often as an *ō-suriage* unsigned katana. The named pieces carry the history: the Kenmu 1 (1334) tachi called "the white eyebrow among his works"[[c:7]]; the Kan'ō 3 (1352) tachi of Kan'in-no-miya transmission; the Satake katana bestowed by Shōgun Tokugawa Ienobu in Hōei 8 (1711), whose Hon'ami Kōon gold-inlay attribution the sources call "entirely just"[[c:8]]; and the Date family katana that may be the very Motoshige the Tokugawa Jikki (徳川実紀) records Iemitsu granting Date Masamune in Kan'ei 1 (1624). Twenty-seven blades carry recorded provenance, through the Date, Satake, Uesugi, Hachisuka, Hosokawa, Shimazu, Owari Tokugawa and Yanagisawa houses and into the Imperial Family. The Important Cultural Properties can never trade, and holdings of the Tokyo National Museum, the Hayashibara Museum of Art, the Seikadō Bunko Art Museum, Uesugi Jinja and the British Museum stand outside the market. Yet with 137 blades in those tiers he remains among the few major names of Nanbokuchō Bizen a collector can still realistically hold, and the hand declares itself wherever the squared, slanting *ha* runs beneath a vivid *utsuri*.
Chikakage (近景) — Mainline · 1322-1347. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. Chikakage is the Osafune smith who stands closest of all to Kagemitsu, and the published sources frame him exactly that way: traditionally a pupil of Nagamitsu, his dated work running from late Kamakura into the opening years of Nanbokucho, and so near the third Osafune master that pieces in Kagemitsu's own oeuvre are read as Chikakage daimei. The record returns again and again to the same judgment, that the relationship between the two was an extremely close one. To learn Chikakage is therefore first to learn how, within a hair, he parts from the master he served.
The shape is the late-Kamakura Bizen tachi the eye expects of this generation. Even shortened, the blades keep a high koshizori with the curvature carried toward the tip and a chu-kissaki, the mihaba standard to somewhat wide; the later, Nanbokucho-leaning pieces broaden into longer, wider forms and naginata-naoshi, one such carrying an o-kissaki on a thinned kasane. It is a body that reads as both old and dignified, and on the best of them the jigane is the quiet surprise the appraisers single out, a steel that comes up finer and more minutely worked than is usual for the line.
The jigane itself is an itame mixed with mokume and a touch of flowing nagare-hada, inclining to stand a little open. Fine ji-nie gathers thickly, chikei enter, and a vivid midare-utsuri rises across the surface; in places the steel takes on a ji-madara mottling. This is the first quiet separation from Kagemitsu, whose tightly refined, well-packed hada is the comparand the published sources hold up: against it Chikakage's grain stands more openly, sometimes mixing larger patches into a slightly uneven forging, even as his finest jigane can be, in the record's own words, fine and minutely worked.
The hamon sits on a suguha or chu-suguha base carrying small choji, small gunome and the angular, kataochi-leaning gunome of the line, the whole tending to slant in saka-gakari. Ashi and yo enter busily, with reversed saka-ashi among them, the nioiguchi bright, ko-nie adhering, and kinsuji and sunagashi playing through the ji and ha; the temper can also open into a fuller choji-midare on the most ambitious blades. The slanting midare and reversed ashi, present on roughly two of every five of his swords against barely one in twenty-five elsewhere in the line, are shared with Kagemitsu, so on the ji and ha alone the two are genuinely hard to part.
The boshi is where the older profile went wrong, and where the corpus is in fact unambiguous. The dominant return is a ko-maru (小丸), often rising at the yokote and then settling shallow, with a strong secondary tendency for the tip to run pointed (尖, the record's repeated note that the boshi tip becomes pointed) and, on a notable share, to finish as yakizume or to enter in midare-komi (one naginata-naoshi recorded with the boshi entering in midare and becoming yakizume-like). What the older commentary called a single, exaggerated Sansaku turnback is at most a flourish on some pieces; the section-level truth is a ko-maru-led boshi with pointed, yakizume and midare-komi variants, and that is what a working kantei should carry.
For the collector the recognition runs in this order: a late-Kamakura Bizen tachi shape, an itame that stands a little open with thick fine ji-nie and vivid midare-utsuri, a saka-gakari suguha-to-ko-midare ha with busy reversed ashi, kinsuji and sunagashi, and above it a ko-maru boshi that tends to point, with yakizume and midare-komi seen. Two further tells close the identification: the stronger ha-nie, the record's note of nie beyond what is seen in Kagemitsu, and the documentary fingerprint of his signing, the reverse chisel whose heavy use the sources call typical of his hand. Fujishiro grades him Jo-jo saku. The designated work is real and deep, with one National Treasure and three Important Cultural Properties on record beyond the seventy-nine blades carried at the Tokuju and Juyo tiers, and the named provenances reach the first houses of the realm, Uesugi Kenshin and the Uesugi, the Tokugawa shogunal house, and the Date among them. He is the indispensable shadow of Kagemitsu, the hand whose near-perfect echo of the master is itself the best measure of how tightly that great Osafune workshop worked.
Tomomitsu (倫光) — Mainline · 1345-1370. Kokuhō, Jūbun, Jūbi, Tokujū, Jūyō. The largest of Tomomitsu's signed works is the great *odachi* of Futarasan Shrine in Nikko, a National Treasure dated Joji 5 (1366). The published record cites it from the first Juyo session as "the largest of his signed works"[[c:1]] and in the most recent as "the pinnacle of Osafune Tomomitsu"[[c:2]], anchoring the carving of new submissions against it. Tomomitsu (倫光) was a swordsmith of the Bizen Osafune mainline in the Nanbokucho period, introduced by the NBTHK with one unvarying sentence: "one of the students of Kanemitsu, and by one tradition even said to have been Kanemitsu's younger brother"[[c:3]]. The modern formula runs his dated work from Jowa to Eiwa, 1345 to 1379; the dated blades on the official record carry nengo from Bunna through Oan. The same formula places him within the school: closest of all to Kanemitsu's manner, his rank of work "pressing the master himself"[[c:4]]. Fujishiro grades him Jo-jo saku.
His own hand, the published sources repeat, is "the easygoing, gentle midare led by notare"[[c:5]], most often a *ko-notare* mixing *gunome*, *ko-gunome*, pointed and somewhat angular teeth. The criterion is given in so many words: such a blade "is to be judged Tomomitsu from the point that the crests of the notare tend slightly to points"[[c:6]]. *Ashi* and *yo* enter, the temper leans to *nioi* with *ko-nie*, and *kinsuji* and *sunagashi* work through it; the *boshi* runs *midare-komi*, usually finishing pointed, at times swept with *hakikake*. Horimono mark his blades far more often than the rest of the school: beyond the *bo-hi* the record draws *bonji*, *gomabashi*, paired *futasuji-hi*, the three-pronged ken and above all the *kurikara*, the grass-style form of which "is a peculiar carving scarcely met with outside this smith and Kanemitsu"[[c:7]]; the Futarasan odachi and a signed tachi in the Kurokawa Institute of Ancient Cultures carry the reference examples.
The jigane is *itame* mixed with *mokume*, *ji-nie* attaching and fine *chikei* entering; on the *tachi* and *katana* a *midare-utsuri* rises, while the *hira-zukuri* pieces lean to a *sugu*-style or *bo-utsuri*. Here the published sources separate him from his master with unusual candor: the first Juyo session records that "compared with Kanemitsu his jigane is inferior, and many works tend somewhat to stand"[[c:8]], and the recent formula repeats the division in kinder terms: close to Kanemitsu, yet marked as Tomomitsu by the slightly standing jigane and the unhurried notare base.
The shape of what survives was set out in the first session: "tanto and short wakizashi survive signed in comparative numbers, but the tachi are almost all unsigned"[[c:9]]. His tachi were mostly the long blades of the Enbun-Joji fashion, wide, with little taper and an extended *chu-kissaki*, and they come down as *o-suriage mumei* katana; the signed and dated work concentrates in the wide, *sunnobi*, *hira-zukuri* tanto and wakizashi, two carrying the incised invocation Hachiman Daibosatsu[[c:10]]. The signature is the six-character long mei Bishu Osafune Tomomitsu[[c:11]], smallish, often in a fine chisel, set toward the mune, with the date on the ura; twenty-eight of the designated blades are signed against twenty-nine unsigned. The gold inlays on the shortened blades, kinzogan-mei of Hon'ami Kojo, Koyu and Sato Kanzan and a kinpun-mei of Hon'ami Koson, are attributions by later appraisers, not signatures; one Juyo katana keeps its original mei folded back as an orikaeshi-mei. An early entry raises, and leaves open, the question of two generations of the same name[[c:12]].
Two side manners flank the notare. On signed work of Joji and Oan he also worked the older spine of the school: a midare led by *kataochi-gunome* or squared, angular teeth; the sources hold such a tachi against his notare masterpieces and call it proof of "the breadth of his working range and the sureness of his technique"[[c:13]], while a small kataochi tanto recalls Kagemitsu and Kanemitsu and "at first sight could be mistaken for a Kamakura-period piece"[[c:14]]. Among the unsigned attributions stands a markedly nie-strong group[[c:15]], where *yubashiri* and small *tobiyaki* appear along the temper and the pointed boshi completes what the record names "the Soden-Bizen character"[[c:16]]. Its emblem is the great hocho-gata wakizashi of Yasukuni Shrine, recorded with its koshirae in Matsudaira Sadanobu's Shuko-jisshu (集古十種) as the sword of Egara Tenmangu in Kamakura, handed down of old as a work of Masamune, "a celebrated piece famous since antiquity"[[c:17]]; the modern judges read its vivid utsuri, notare-led midare and pointed boshi as a Bizen smith under Soshu influence; its kurikara, close to that of the Futarasan odachi, settles the attribution. In inverse, the kataochi-gunome that defines Kagemitsu and Kanemitsu recedes in him, and suguha falls away almost entirely. The record sets him beside the other Kanemitsu students, Hidemitsu, Masamitsu and Motomitsu, whose works resemble the master while falling a step short; no successor line is drawn for him.
Sixty-three designated works stand on the official record: the Futarasan National Treasure, two Important Cultural Properties, eight Tokubetsu Juyo and fifty Juyo, fifty-seven in the Tokubetsu Juyo and Juyo tiers. The provenance roll runs through the great houses: the first Juyo session's signed tachi of Oan 6 came down in the Yamauchi family, lords of Tosa; the Tokubetsu Juyo katana with the gold-inlaid attribution descended in the Echizen Matsudaira family as the reputed sword of Matsudaira Shungaku, with a Genroku 7 (1694) origami of Hon'ami Kojo; another katana, bestowed by Ii Naomasa on his retainer Suzuki Iwami no Kami Shigeyoshi, was later presented to the Mito Tokugawa family; other pieces passed through the Okubo lords of Odawara and the statesman Ito Miyoji. The National Treasure and the Important Cultural Properties, three blades, are patrimony held permanently outside the market, the odachi at Futarasan Shrine and the wakizashi at Yasukuni with its Shuko-jisshu koshirae. What a private collector may realistically encounter lies in the Tokubetsu Juyo and Juyo tiers, most of it the o-suriage mumei katana cut down from his grand tachi; a signed and dated tanto or wakizashi is the rarer event, and an ubu signed tachi rarer still; the first session already observed that tachi of ordinary length were few from his hand. A Tomomitsu reaches the market only from time to time, recognized when it does by the easy notare whose crests tend slightly to points.
Kanenaga (兼長) — Chōgi group · 1362-1388. Jūbi, Tokujū, Jūyō. Kanenaga of Bizen, written 兼長, is transmitted in the published sources as a pupil of Osafune Chōgi[[c:1]], and so as a smith of the Soden-Bizen line in which the Sōshū manner of Masamune was carried into the Bizen workshop. The published record is candid about how little signed work survives: extant in-mei examples are exceedingly few. The standards are a wakizashi dated Jōji 5 (1366), designated an Important Art Object, and tantō dated Shitoku 4 (1387) and Kakei 2 (1388), the latter two showing nie stronger and ji-ha activity richer than the first. From these few dated blades the published sources draw the judgment that anchors the whole attribution: his workmanship approaches that of Chōgi yet pushes the Sōshū side further still[[c:2]]. The reality of the kantei, however, lies elsewhere, since almost everything that survives under his name is a grand o-suriage mumei katana attributed to him by workmanship rather than by a signature.
In that majority register the published sources describe a katana that resembles Chōgi but is, in their words, more strongly nie-laden, with activity working freely within the temper[[c:3]]. The form they record is itself part of the recognition: wide *mihaba* with almost no taper from base to tip, thick *kasane*, a rather deep *sori*, and an *ō-kissaki* or an extended *chū-kissaki*, the bold Nanbokuchō shape preserved by *ō-suriage*. The temper they describe is a large-pattern *midare* on a *notare* or *gunome* base, mixing *gunome* and *ko-gunome* with *chōji*, angular ha, pointed *togari* elements, and the waist-open *koshi-biraki* shapes that give his work its swing. *Ashi* and *yō* enter well, the *nioiguchi* runs deep and bright, and the *nie* clots and in places coarsens, with *kinsuji* and *sunagashi* running frequently. Small *yubashiri* and detached *tobiyaki* break out above the temper, and the *bōshi* runs *midare-komi*, often pointed and sweeping into *hakikake* or a flame-like *kaen* tip.
The *jigane* is the Bizen base over which that Sōshū temper is laid. The published sources describe *itame* mixed with *mokume* and *ō-mokume*, areas of *nagare-hada*, and a grain that stands out (*hada-dachi*); over it fine *ji-nie* adheres densely and *chikei* enter thickly and well. The Bizen *utsuri* is present but faint, recorded again and again as a *midare-utsuri* that stands only dimly[[c:4]]. That thin reflection is itself a tell: the more the Sōshū side is pushed, the less the old Bizen *jigane* shows its *utsuri*, and on the most Sōshū of his blades the reflection recedes almost to nothing. The published commentary reads the surviving *utsuri* as the proof of his province, judging one such katana, because the reflection appears at all, to be Soden-Bizen[[c:5]].
The work therefore divides in two. The rare dated signed pieces are the calibration: the Jōji wakizashi runs toward a *hitatsura* tone, and the Shitoku and Kakei tantō carry the Sōshū manner so far that the published sources liken them to Norishige, written as blades that at a glance could be confused for him in their emphasized Sōshū-den[[c:6]]. The signature style and the chisel-work of these dated pieces confirm, the sources say, that this hand belongs to the Chōgi line. Against that calibration stands the great body of *ō-suriage mumei* katana, more flamboyant and bolder in pattern than Chōgi himself. The published record also preserves a dating question, attributed to Honma: the Jōji Kanenaga signature differs from Chōgi's, whereas the later Shitoku, Kakei and Meitoku pieces match the signature style of Chōgi's Ōan years, so that the received account ought to be re-examined[[c:7]], and the earlier Jōji Kanenaga may be a separate line while the later Kanenaga is the true Chōgi pupil[[c:8]]. The sources present this as an open question of scholarship, not a settled fact.
Within the Chōgi group his place is the most Sōshū-emphasized extreme. The published commentary repeatedly distinguishes him from Chōgi by degree: where the ordinary *ō-suriage mumei* attribution to Chōgi runs a step quieter, his is the bolder, larger-patterned, more strongly nie-laden hand, and one Tokubetsu Jūyō katana is judged, among the Chōgi group, the work most properly attributed to Kanenaga himself[[c:9]]. His waist-open *gunome* is the most particular of these tells, a swing the orthodox-Bizen members of the group do not show; his *sunagashi* and *kinsuji* are the most profuse, and his detached *tobiyaki* the most insistent. He stands thereby apart from the more orthodox-Bizen Kanemitsu and Motoshige, whose work keeps closer to the Bizen *chōji* line, and beside Chōgi as the pupil who carried the Sōshū side of Soden-Bizen the furthest.
Kanenaga is *Jō saku* in Fujishiro's grading, with a *Tōkō Taikan* valuation of 900. Despite the near-absent signed record, the weight of designation behind his name is substantial: none of his blades carry a national heritage designation, but eleven have reached Tokubetsu Jūyō and eighty more are Jūyō, ninety-one in the two top tiers, with several further designated Juyo Bijutsuhin. The provenance recorded against his blades carries names of standing, the Sanada Family, the Tōdō Family, Sakai Tadayoshi, the Tsuchiya Family of Tsuchiura, the Yamauchi, and the American collector Walter A. Compton. Of recorded whereabouts, two examples are held by institutions, the Bizen Osafune Sword Museum and Itsukushima Jinja, the rest by private hands. Because almost nothing signed survives and the attributed katana are themselves uncommon, a Kanenaga reaches the market only rarely; with no blade locked in the highest heritage tiers, the recorded examples sit in the Tokubetsu Jūyō and Jūyō tiers, most of them held rather than traded, so that an example coming into open hands is a landmark when it does, not a thing to be sought at will.
Yoshikage (義景) — Chōgi group · 1334-1363. Jūbun, Jūbi, Tokujū, Jūyō. Two of Yoshikage's signed blades carry a date, one to Enbun 2 (1357) and one to Ōan 7 (1374), and on these few inscribed pieces the whole of his record rests. He is a Bizen Osafune smith of the Nanbokuchō period, counted among the makers the published sources call *Sōden-Bizen* (相伝備前), the Osafune hands who worked the Sōshū-influenced manner in Bizen beside the lines of Kanemitsu and Nagayoshi. His lineage has long been argued. The older books made him a second son of Kagemitsu, or a pupil of Kanemitsu, or a pupil of Nagayoshi; in recent years, on the close resemblance of his workmanship and the distinctive way he cut his signature with the reverse chisel, the prevailing view is that he was "a collateral Osafune smith of the same kin as Chikakage and Morikage"[[c:1]]. The sword registers transmit two generations, a first toward the end of Kamakura and a second around Jōji, and authentic signed works are so scarce that the two are not easily separated.
The hand the published sources describe is a small-patterned, varied *midare* rather than the orthodox Osafune clove-flower. Over the *jigane* he tempers a *suguha* base into which he mixes *ko-gunome*, *ko-chōji*, angular *kakubaru-ba* and pointed *togariba*, the elements kept small and the intervals of the undulation tight, so that the line reads as densely animated yet modest in pattern. Within it run abundant *ashi*, *saka-ashi* and *yō*, the temper *nioi*-dominant with *ko-nie* that gathers somewhat in clusters, with *kinsuji* and *sunagashi* worked through and a slight *yubashiri*-like *tobiyaki* intermingled. The *nioiguchi* tends to subside, and it is exactly there that the judges locate him: in the Sōden-Bizen group, the published sources hold, "where the *hamon* keeps to small clusters and the *nioiguchi* subsides lies the point that marks out Yoshikage"[[c:2]]. The *bōshi* runs *midare-komi* with a pointed tendency and *hakikake*, on one Tokubetsu Jūyō katana turning at the tip in a pointed manner that the commentary names as conspicuously his own.
The *jigane* is the constant beneath that quiet temper. It is an *itame* mixed with *mokume* that tends to stand, a *hada-dachi* into which fine *ji-nie* settles densely, *chikei* enters well, and a *jifu*-toned texture appears in places, with a *midare-utsuri* standing in the surface. On the broadest blades the *ji-nie* is laid *mijin*, dust-fine and thick, and the *chikei* runs strong. This strongly *nie*-laden forging, with its frequent *kinsuji* and *sunagashi*, is what the prewar connoisseurs read when they placed him without hesitation among the Sōshū-den smiths, and what the modern judges mean when they say a blade "manifests the working range of Sōden-Bizen."
His recognized prime is the broad Nanbokuchō blade in the height-of-period shape: wide in body with little taper from base to tip, the *kasane* often notably thick, ending in a large point, and surviving for the most part *ō-suriage* and *mumei*. Against this stand the rare signed pieces, which skew quieter: one Jūyō *tachi* is essentially *suguha-chō*, subdued in workmanship, that the published sources keep precisely because authentic signatures are so few and it is valuable as reference. A separate register is the *naginata-naoshi*, blades reshaped from the polearm, for the published sources call him "an old master of the naginata"[[c:3]] and a large share of his attributions take that form, wide-bodied and shallow in *sori*, the *shinogi-ji* planed down, sometimes keeping traces of the *naginata-hi* and *soe-hi* on the tang. The two dated signatures, of Enbun and Ōan, fix this varied output securely in the mid-to-late Nanbokuchō.
What separates Yoshikage from his neighbours is what the judges name on his own blades. Within Sōden-Bizen his temper is read as "neither Kanemitsu's nor Nagayoshi's"[[c:4]]: smaller in pattern than the orthodox Osafune *chōji*, more subdued in the *nioiguchi* than the showier Chōgi hand, and laid over a *jigane* that carries a step more *sunagashi* and *kinsuji* than the Kanemitsu work. His signature, cut with the reverse chisel, is read in the same breath as his kantei, the commentary treating "the distinctive signature cut with the reverse chisel"[[c:5]] as one of the marks that fixes both his hand and his kinship to the collateral Osafune line. He stands, in short, as the quiet, *nie*-laden member of the Sōden-Bizen circle, the one whose interest lies in restraint rather than in flame.
For the collector Yoshikage is a scarce name on which little can ever change hands. Fujishiro grades him Jō saku. He has no National Treasures; his record runs instead through two Important Cultural Properties, one a signed *wakizashi* dated Ōan 7 held at Tanzan Shrine in Nara, the other a signed *tachi*, together with three Tokubetsu Jūyō and some sixty Jūyō blades, and the prewar Jūyō Bijutsuhin. Of recorded whereabouts his blades pass through long-held hands rather than the open market: a *tachi* once in the Date family, another transmitted in the Arisugawa-no-miya house, a katana whose tang bears the gold-inlaid possession inscription of Ōkubo Shirōzaemon-no-jō. The published commentary singles out his finest *naginata-naoshi* as "foremost among works by the same hand"[[c:6]]. With reliably signed pieces extremely few and most survivors *ō-suriage* and *mumei*, a Yoshikage in private hands comes to light only from time to time, and seldom near the top of his range; when one does, it is a quiet document of how the Sōshū manner was carried into late Osafune.
Nagashige (長重) — Chōgi group · 1334-1342. Kokuhō, Jūbi, Tokujū, Jūyō. Nagashige worked at Osafune in the opening years of the Nanbokuchō period, in the line that the published sources rank beside Kanemitsu as a 'standard-bearer of Sōden-Bizen'[[c:1]], the Bizen wing that took up Sōshū technique. His relationship to Chōgi was long misread, and the correction is one of the firmer facts on record: an older account made him Chōgi's younger brother, but his surviving signed blades carry dates of Kenmu 1 and 2 (1334–1335) and Kōei 1 (1342), while no work of Chōgi can be traced earlier than Shōhei 15, so the prevailing view today makes him Chōgi's elder brother. The dated anchor of that argument is concrete: a tantō signed Bishū Osafune-jū Nagashige and dated to the cyclical year kinoe-inu, Kenmu 1, once the sashiryō of Hon'ami Kōtoku, is his National Treasure.
His characteristic hand is the *Sōden-Bizen* midare, and it is most fully seen on the broad mumei katana that make up the bulk of his record. Over a standing *itame* mixed with *mokume* and *nagare-hada*, the *jigane* standing a little, he tempers a shallow *notare* or *gunome* base into which enter *ko-gunome*, *ko-chōji* and pointed *togariba*, with abundant *ashi* and *yō*. The *nioiguchi* is deep and bright, *ko-nie* adheres well with passages of rougher *nie*, and *kinsuji* and *sunagashi* run freely, small *tobiyaki* and *yubashiri* scattered along the edge. The *bōshi* runs *midare-komi*, rising to a pointed tip with *hakikake* or turning back in a small *ko-maru*. The construction is the full Nanbokuchō build, wide in *mihaba* with little width-taper, thick in *kasane*, an extended *chū-kissaki* or an *ō-kissaki*, hand-heavy and imposing.
The *jigane* carries the Bizen credential that keeps the work from turning purely Sōshū. Itame with thick *ji-nie* and well-entering *chikei* appears on every blade, and over it stands a *midare-utsuri*, clear where the forging is *itame* with *mokume* and falling to a faint *utsuri*-like cast on the rest. On the signed register, by contrast, the hand is tighter and calmer. The dated tachi run to a well-packed *itame* with fine *ji-nie* and only a light *utsuri*, the temper a *chū-suguha* or *suguha*-toned line mixed with *ko-gunome* and *ko-chōji*, even *saka-ashi* entering, *ko-nie* and *ko-ashi* present. Devotional carving, *bonji* set at the *koshimoto*, appears on more than one piece.
The published sources draw two further registers within his own work. On the signed tantō they read a more emphatic Sōshū cast than Chōgi himself, noting that 'among the signed survivors the tantō press the Sōshū manner further than Chōgi'[[c:2]]; these are *hira-zukuri* with a standing hada, a small *notare* with *gunome* growing vigorous toward the tip, *sunagashi* frequent and the pointed *bōshi* powerful. One signed tantō stands apart from everything else, its temper centered on *kataochi-gunome* mixed with squared *kaku-gunome*, evoking Kanemitsu, his circle and even Motoshige rather than the Chōgi midare; the sources call it 'a stylistic range unusual for Nagashige'[[c:3]] and value it as documentary material for the breadth of his manner.
What separates Nagashige from Chōgi is named the same way in entry after entry, and it is the whole of his kantei. His *midare* is of smaller scale and his *yaki* somewhat lower, yet 'the *nie* in both *ji* and *ha* surpasses Chōgi's'[[c:4]]; it is on this single recurring point that a *Sōden-Bizen* blade is converted into a Nagashige attribution. His distinction is carried by his own traits, the smaller, lower midare laid over a *ji* and *ha* more richly charged with *nie*, rather than by any feature borrowed from his brother. Traditionally his son Nagamori carries the line forward in a conspicuously *chōji*-based but somewhat lesser hand.
Fujishiro grades him Jō-jō saku. Signed, *ubu* Nagashige are extremely rare, and the body of his record runs through the Tokubetsu Jūyō and Jūyō tiers and the prewar Jūyō Bijutsuhin, above which stands his single National Treasure, the Kenmu 1 tantō held in the Hon'ami family. Several blades carry daimyō provenance: a katana given by Tokugawa Ieyasu to the Naruse house of Inuyama in Owari and long kept there, others through the Maeda of Kaga, the Nabeshima of Saga and the Shimazu. With only thirteen blades in the Tokubetsu Jūyō and Jūyō tiers and almost all of them held rather than traded, a signed Nagashige comes to light only seldom; a privately held example, where the broad *Sōden-Bizen* katana shows its smaller midare over an unusually nie-laden *ji* and *ha*, is a notable thing for a collector to encounter, and a document of how Bizen absorbed the Sōshū manner.
Masamitsu (政光) — Mainline · 1356-1399. Jūbun, Jūbi, Tokujū, Jūyō. Among the dated tantō by Masamitsu is one carved on the omote with a swelling-dragon kurikara and on the ura with a bonji and gomabashi, a thick-kasane piece dated Eiwa 4 (1378) that the published record calls a representative superior work of his oeuvre[[c:1]] and that has come down with the epithet Koryū Masamitsu, the Small Dragon Masamitsu. He was a Bizen Osafune smith of the mid-Nanbokuchō into the early Muromachi period and one of the disciples of Osafune Kanemitsu, named in the published sources in one breath with his fellow students Tomomitsu and Motomitsu. His dated blades run from Enbun through Ōei, so that his working span is fixed with a clarity unusual for the late Osafune, and he carries his teacher's manner forward into the closing decades of the koto Bizen tradition.
The tell of his hand is restraint. Following Kanemitsu he works notare, gunome-midare and suguha alike, yet across the whole of his output the temper settles toward a small, subdued pattern, and the NBTHK names this exactly: 「総じて刃文が小模様となるところに此の工の見どころがある」, the point of appreciation in his work is that the hamon as a whole becomes small in scale. Over a well-forged itame he tempers a ko-notare into which gunome, kaku-gunome, ko-chōji and pointed togariba enter, the nioiguchi nioi-dominant and tight, carrying ko-nie with fine sunagashi and kinsuji, and on his finest tantō, the Koryū Masamitsu among them, he sets a kataochi-gunome, the saw-tooth temper that is the Kanemitsu school's own inheritance. The ashi and yō enter well; the activity is held within a quiet line rather than flung into towering clusters.
The jigane is the Osafune constant beneath that quiet edge. His itame is well forged, often standing a little and mixed with mokume, with a thick ji-nie and fine chikei, and over it stands a bright midare-utsuri, the speckled reflection of old Bizen steel, that the published record finds on his signed and his attributed work alike. Where the forging tightens into a packed ko-itame the utsuri only grows clearer; on the slender late pieces it can run as a straight bō-utsuri or a sugu-utsuri instead. The bōshi answers the hamon, entering in midare-komi to a ko-maru or finishing with a faintly pointed togari-gokoro and hakikake, and on his tantō he carves the devotional program of the school, bonji with a gyō-form kurikara and bonji with gomabashi, the swelling-dragon motif that the published commentary traces to the distinctive horimono of the Osafune line since the second-generation Nagamitsu[[c:2]].
His record falls into clear registers. The signed and dated work of the high Nanbokuchō is the core, cut on an ubu tang with the full Bishū Osafune Masamitsu signature and a year date. The late work is the slender kodachi, ko-tachi and naginata of the Kakyō years at the very end of the period, narrower in body and tighter in the line, which the swordbooks gather as a class the published record describes thus: 「総称して江戸時代以来小反物と称している」, pieces collectively called ko-sorimono since the Edo period. Beside these stand the ō-suriage mumei katana and naginata-naoshi attributed to him within the Kanemitsu circle. Running through all of it is the open question of whether the name Masamitsu was borne by two generations: the earlier designations follow the swordbooks in placing a shodai in the Enbun through Eitoku years and a nidai in the Kakyō years, assigning pieces to each by year inscription and workmanship, while a later paper judges that 「康応以降は二代とする説があるがなお検討の余地があろう」, the two-generation reading still to be examined; on one signed second-generation tantō the judges go so far as to write that the quality of its ji and ha is so good as to give 「殆んど兼光を見るような感がある」, almost the impression of looking at Kanemitsu himself.
What sets him apart within his own school is precisely that subdued line and that bright reflection. On the ō-suriage attributions the published record affirms the Kanemitsu-school ji and ha while granting candidly that the work resembles Kanemitsu yet falls a step short of him, seen in the slightly subdued temper and the less settled monouchi, so that the attribution rests on era and school as much as on a personal tell. Against his teacher's broader, more varied midare, Masamitsu is read by the smallness of his pattern and the tightness of his nioiguchi; against the plainer late-Bizen hands he is held by the brightness of his midare-utsuri and the kataochi-gunome on his edge. He stands among the last Osafune masters to keep the Kanemitsu manner intact before the school turned to the volume production of the Ōei years.
For the collector he is a knowable late-Osafune name carried on a substantial signed record. Fujishiro grades him Jō-jō saku. He has no National Treasures; his standing rests instead on one Important Cultural Property tachi, two blades at the Tokubetsu Jūyō rank, and a wide spread at Jūyō, and the published commentary singles out one Tokubetsu Jūyō tachi, more complex and showy than his wont, as 「同作中出色の出来映え」, an outstanding example among his works. His blades are grounded in old provenance, the Tokugawa shogunal house among them, with the Koryū Masamitsu tantō transmitted in the Ōmaeda family and once carrying a Hon'ami Kōtsune origami, and his work is held today in long-standing public and private collections, including the Kyushu National Museum, the Hayashibara Museum of Art and the Tokyo National Museum. With only a small number of blades in the Tokubetsu Jūyō and Jūyō tiers and most of those long held rather than traded, a signed and dated Masamitsu of recorded whereabouts comes to light only from time to time, and a privately held example, ideally an ubu-tang piece with its date intact, is a satisfying thing for a collector to encounter, a precisely datable document of how the great Osafune line carried its art to the close of the koto age.
Motomitsu (基光) — Mainline · 1342-1372. Jūbun, Jūbi, Tokujū, Jūyō. Motomitsu was a swordsmith of the Bizen Osafune school in the Nanbokuchō period, transmitted as either a son of Kanemitsu or a smith trained in his circle, and recorded as having held the title Saemon-no-jō. His dated works run from the Kōei era through Eiwa, so the span of his activity is securely fixed, and the published sources open the Tokubetsu Jūyō tachi held by the Tokugawa house plainly: "a signed tachi by Motomitsu, a pupil of the master"[[c:1]]. He carries the Kanemitsu manner forward into the second half of the fourteenth century, and the same commentary that places him in that lineage also draws the careful line that defines his standing within it.
His hand is read first in the temper. Over an *itame* he sets a *gunome*-dominant *midare* whose spine is *kataochi-gunome*, the saw-tooth pattern of the Kanemitsu workshop, and into it he crowds angular teeth, *togariba*, and shallow *ko-notare* whose crests turn angular. The published sources name this intermixture as his own: of the Tokugawa tachi they write that "the workmanship is broadly Kanemitsu-den, yet, as in this blade, the *gunome* are conspicuous, and his distinctive character is seen in the way *gunome* of many shapes mingle together"[[c:2]]. The figure recurs across his Jūyō entries, set against the more orderly, linked *gunome* the school also produced. *Ashi* and *yō* enter, the *nioiguchi* tightens and runs bright with *ko-nie*, and *kinsuji* and *sunagashi* play through the *ha*.
The *jigane* is the constant beneath that temper. His *itame* is mixed with *mokume* and frequently tends to stand into *hada-dachi*, with *ji-nie*, fine *chikei*, and patches of *jifu*-toned steel, over which a *midare-utsuri* rises; near the edge it often reads instead as a straight, *sugu*-toned *utsuri*, the Osafune *jigane* he shares with his master. The *bōshi* enters in *midare-komi* and turns with a pointed tendency to a small round, finishing with fine *hakikake*. On his dirks he carves *bō-hi*, or a *koshi-hi* with accompanying *soe-hi*, and one tantō carries a devotional *gomabashi*, the quiet decorative vocabulary of late Osafune.
His record divides cleanly by form. On one side stand the signed, dated blades in his own hand: tachi cut Bishū Osafune Motomitsu, and the *hira-zukuri* wakizashi and tantō, several of them *ubu* and crisply dated to Bunna, Jōji and Ōan, of which the published sources say "the quality of the workmanship gives the sense of approaching Kanemitsu"[[c:3]] and which they prize as research material for the smith. On the other stand the *ō-suriage* *mumei* katana, wide in body with little taper and an extended *chū-kissaki*, the grand Nanbokuchō shape, judged to him from era and the Kanemitsu manner. The commentary notes that signed tachi by him are comparatively few.
What separates him from the rest of the group is exactly what the judges name when they affirm an unsigned blade. They find in the standing grain and the varied teeth within the *kataochi-gunome* the features that mark a work as his, writing of one katana that "within the Kanemitsu group there is that which should be most closely likened to Motomitsu, and the attribution is correctly affirmed"[[c:4]]. Yet they are equally candid about his rank: in overall standing "there are points where he yields slightly to Kanemitsu"[[c:5]]. His is the able second hand of the workshop, holding its temper while pressing his own crowded, varied *gunome* upon it, and the unsigned attributions rest on school and period rather than on a single decisive personal tell.
For the collector he is a documented but uncommon late-Osafune name. The Tōkō Taikan values him at the upper-middle level, and his connoisseurship record is built less on volume than on the precision of his dated, signed work. He has no National Treasures; his standing rests instead on one Important Cultural Property, a signed tachi preserved in the Mitsui Bunko in Tokyo, together with one Tokubetsu Jūyō and a body of Jūyō blades, some thirty-eight in the Tokubetsu Jūyō and Jūyō tiers in all. The provenance that survives is good: the Tokubetsu Jūyō tachi descends through the Tokugawa house, called by the published sources "a superior work by Motomitsu transmitted in the Great Tokugawa family"[[c:6]]; a katana bearing a gold-inlaid attribution thought to be the work of Hon'ami Mitsutada is held by the Sano Art Museum, formerly in the Homma collection. Most designated Motomitsu blades are held rather than traded, so a signed example comes to light only from time to time, and when one does it is a precise, datable record of how the Kanemitsu workshop carried Osafune through the Nanbokuchō age.
Yoshimitsu (義光) — Mainline · 1334-1349. Jūbun, Tokujū, Jūyō. A tachi dated Kōei 2 (1343), eighth month, signed in full Bizen no Kuni Osafune Yoshimitsu, is among the firmest documents of this smith. Yoshimitsu was a swordsmith of the Bizen Osafune school of the late Kamakura into the Nanbokuchō period, by the prevailing tradition a son of Kagemitsu and the younger brother of Kanemitsu, with one account placing the first generation in the Nagamitsu line. His dated works run from Genkō at the close of Kamakura through Jōji, roughly forty years that almost exactly parallel Kanemitsu, and the sword reference books distinguish a first generation, following his father, from a second that more nearly resembles his brother. Like Kanemitsu he commonly used Northern Court era names, although a tantō dated Kōkoku 6, a Southern Court name, also survives. He belongs to the central Osafune workshop at the moment it turned from the classicism of Kagemitsu toward the broad Nanbokuchō manner of Kanemitsu, and his record is read on the seam between the two.
His recognition turns on a single axis the judges restate on nearly every blade: his is the manner of the Kanemitsu group, but the irregularity is composed in a smaller pattern. Over an itame jigane that stands a little, often mixed with nagare and mokume, he tempers an angular gunome and kataochi-style gunome, with ko-gunome, ko-chōji and pointed elements intermixed, the whole resolving into a small-scale midare, in places running reversed, with ashi and yō entering, the nioiguchi nioi-dominant with ko-nie, and fine sunagashi and kinsuji through the line. The kataochi and the angular gunome carry over from his father Kagemitsu, while the crowding of many different edge-forms inside the irregularity is named as his own hand. On one signed tachi the published sources put it plainly, that 'compared with his elder brother Kanemitsu the irregularity is of smaller motifs, and the inclusion of pointed elements within the tempered edge is readily perceived as a hallmark of Yoshimitsu'[[c:1]].
The jigane is the constant beneath that edge. The itame carries ji-nie, fine chikei enter, and a vivid midare-utsuri stands clearly, the bright Osafune reflection he shares with the school but renders well-defined; on the tightest-forged pieces the steel packs into ko-itame and the utsuri only sharpens, and one signed tachi mixes a jifu-toned texture into the jigane. His earliest dated tachi stand apart from this prime manner. They are slender, high in koshizori with funbari, forged in tight ko-itame with a bō-utsuri or a straight utsuri, and tempered not in gunome at all but in a calm suguha with slight ko-ashi, nioi-dominant with ko-nie, a register the judges read as following Kagemitsu rather than Kanemitsu.
The profile thus divides in three. The early dated tachi, in the Kagemitsu suguha, anchor the chronology, and of the Kōei 2 piece the published sources note that it is 'extremely similar to a Kanemitsu tachi dated Kōei 3, sixth month'[[c:2]], an Important Art Object, the two hands documented working side by side. The prime, the kataochi and angular gunome in their smaller midare, is the body of the record. A third, smaller register pushes toward strong nie in the soden Bizen feeling the period prized: a naginata-naoshi wakizashi the judges call a deliberate stressing of Sōshū-den, with abundant ji-nie, yubashiri, sunagashi and kinsuji, and a wide ō-kissaki katana that turns blackish in the steel and adds yahazu-ba, of which the published sources write that, weighing the excellence of its nie and the activity along the edge, it 'shows workmanship of upper-rank soden Bizen worthy of Yoshimitsu and his circle'[[c:3]]. The first-and-second-generation question is left open across the Genkō-to-Jōji span, and is the central scholarly matter around him.
What sets him apart from his neighbours is exactly what the judges name, and it is drawn from his own work rather than from theirs. Against Kanemitsu his midare is the smaller and calmer, the cutting edge quieter; against his father Kagemitsu his prime carries more nie and the Sōshū-touched activity of his late hand. On one ō-suriage mumei katana the published commentary records that, the sugata and jiba at first suggesting the circle around Kanemitsu, it is precisely because 'the irregularity, set against Kanemitsu's broad openness, presents somewhat smaller-scale features that the blade is to be judged Yoshimitsu'[[c:4]], and on a Jūyō katana that 'the way many different edge-forms intermix within the irregularity displays the character of Yoshimitsu'[[c:5]]. He stands as the quieter, more closely worked hand of the great mid-Osafune workshop, the brother who held to the small-patterned midare while Kanemitsu opened the line outward.
For the collector he is a documented but uncommon Osafune name. Fujishiro grades him Jō-jō saku. He has no National Treasures; his record runs instead through an Important Cultural Property, two Tokubetsu Jūyō tachi and some thirty-two Jūyō blades, and signed work is genuinely scarce, only about a dozen of the surviving pieces bearing a signature against a far larger body of ō-suriage mumei katana. The Important Cultural Property, a signed and dated tachi, is preserved at Kameoka Hachiman-gū in Miyagi. The named provenance of his blades is daimyō: the Kōei 2 tachi passed from Tokugawa Yorinobu of Kishū to the Saijō Matsudaira house in 1667 and stayed there; a Kenmu-era signed tachi was held near Torigoe Shrine in Asakusa and is said to have been a wearing sword of the shogun Ienari. With only a couple of blades in the Tokubetsu Jūyō tier and the rest at Jūyō, a signed and dated Yoshimitsu reaches the market only seldom, and a privately held example, especially an ubu dated tachi, is a notable thing for a collector to encounter, a document of how the Kanemitsu line was carried in a quieter key.
Nagamori (長守) — Mainline · 1346-1370. Tokujū, Jūyō. A tantō dated the fifth month of Shōhei 5 (1350) anchors the career of Nagamori of Bizen Osafune. Of his Shōhei-dated work the published sources write that it "raises the previous upper limit of his dates, and is valuable material for the study of Nagamori"[[c:1]]. Nagamori has been transmitted since old times as a son or pupil of Chōgi (Nagayoshi). His dated blades run from Shōhei 5 (1350) and Shōhei 8 (1353) through Shōhei 22 (1367) and the Kentoku years, to the lately surfaced Eiwa 4 (1378) and Kōō 1 (1389). They place him in almost the same years as Chōgi rather than a generation behind, and like his teacher he signed overwhelmingly with Southern Court era names. A Chōgi tantō dated Jōwa 6, the equivalent of Shōhei 5, is Chōgi's earliest dated piece, so the two stand together at the head of the dated record. One Tokubetsu Jūyō wakizashi goes further, noting that he "may even be seen as slightly earlier than Chōgi"[[c:2]].
His hand is Bizen work carried into the Sōshū manner of the Chōgi line. The temper is a gunome-midare whose waists open in the Chōgi manner, mixed with chōji, ko-gunome and angular, pointed elements, wide and varied in its line. Ashi and yō enter, ko-nie adheres, and fine yubashiri and tobiyaki are mixed through it. Kinsuji and sunagashi run in the ha, and the nioiguchi is bright and clear. The published sources grant the affinity with Chōgi in the opened waists and the variety of the temper, and then settle the attribution on one distinction: his midare resolves into somewhat smaller patterning than the teacher's. Of one blade they write that "in the way the midare becomes somewhat smaller in pattern, the attribution to Nagamori is convincing"[[c:3]]. They read this as a manner falling a little short of Chōgi and Kanenaga in vigour and technique.
He forges an itame mixed with mokume, the hada standing a little and flowing in places, with ji-nie laid on thickly in fine particles and chikei entering well. The published sources name the strong nie of ji and ha as the Sōshū-den character of the Chōgi line, and it gives his jigane its depth. A midare-utsuri stands over it, often only faintly, and the published commentary notes that among blades of this type "there are some on which no utsuri appears at all"[[c:4]]. The bōshi runs in midare and turns back in a ko-maru, at times rising to a pointed tip with hakikake; on the signed pieces it runs up and turns back long. Bō-hi is carved through on most of the shortened katana, and the signed tantō carry su-ken and gomabashi.
His record falls into two groups. The first is a small body of ubu signed and dated work, mostly tantō and short tachi or wakizashi, with a long signature on the omote and a date on the ura. Its peak is the Shōhei 16 wakizashi in the Tokubetsu Jūyō, a wide, elongated hira-zukuri tempered in a large gunome-midare with deep nioi and abundant nie, which the judges read as showing the Sōshū-den. They call it "one of the foremost among Nagamori's works"[[c:5]]. A Shōhei 21 tantō recorded in Honma's inventory of the Imperial collection belongs to the same group. Its entry observes that his signature is close to the Osafune work of the period and differs from Chōgi's, and that "surviving works are very few, and await further study"[[c:6]]. The second and far larger group is the ō-suriage mumei katana, wide in body with an extended or large kissaki in the Nanbokuchō shape, attributed to him by the smaller-patterned reading of the Chōgi style. The published sources stress that beside the opened gunome he leaves a varied small ko-gunome midare, shallow notare and even suguha-toned work, and they call him "a smith of comparatively broad range"[[c:7]]. That breadth, with so few signatures to set against it, is why the mumei attributions turn on so fine a point.
Within Nanbokuchō Osafune he belongs to the Chōgi group, beside Kanenaga and the other Sōshū-den hands of the school, and the comparison the judges draw most often is with Chōgi himself. His midare-utsuri and the brightness of ji and ha keep him a Bizen smith. The thick ji-nie, abundant chikei, kinsuji and sunagashi place him within the Sōshū manner of the Chōgi line, while the smaller scale of his midare and a slightly gentler force separate him from the master. One blade is praised for a bold and splendid air, its midare varied and showy and rich in activity, an excellent work convincingly attributed to him.
Fujishiro grades Nagamori Jō saku. He has no National Treasure and no Important Cultural Property. His record runs through one Tokubetsu Jūyō and thirty-nine Jūyō blades, forty across the two tiers, with the Shōhei 21 tantō recorded in Honma's inventory of the Imperial collection, forty-one works on record in all. Of recorded whereabouts, two are held by the Tokyo and Kyoto National Museums. A mumei katana of Jūyō rank carries a silver-inlaid ownership inscription of Fukushima Kamon-no-suke and an incised note by Tagaya Eishi, who wrote that he bought it with his stipend, wore it always, and bade his descendants keep it. Because authenticated signatures are extremely rare, the dated pieces are valued as evidence as much as objects. A signed Nagamori comes to market only seldom. The mumei katana attributed to him appear more readily, Chōgi-line Sōshū-den blades of bright steel and varied temper within the reach of a patient collector, and a documented signed example is a notable thing to encounter.
Shigezane (重眞) — Mainline · 1327-1358. Tokujū, Jūyō. Shigezane is an Osafune swordsmith of the Motoshige line, working from the close of the Kamakura period into the Nanbokucho, whose earliest dated work is a slightly elongated *tanto* of Karyaku 2 (1327) and whose latest reaches Enbun 4 of the Nanbokucho, a documented span of thirty-three years. The published sources record him by old tradition as the younger brother, or in another account a pupil, of the first-generation Motoshige, and they place his hand squarely within the *Soden-Bizen* of the late Osafune workshop. His is not the brilliant clove-flower of the older Bizen; it is the quieter, more angular manner of the Motoshige group, read by the published commentary as close to Motoshige with the character of Aoe mixed in. Authenticated signed examples are exceedingly few, so much of what survives under his name is judged from the bearing of the blade and the structure of its temper rather than from a signature.
The feature that most distinguishes his work is the temper. Over a *suguha*-toned base he sets angular *gunome*, the squared shoulder that reads as Motoshige-line rather than the rounded clove of Fukuoka, joined by the *kataochi-gunome* that is the structural tell of the group, the asymmetric saw-tooth slanting toward the base. The line frequently leans *saka-gakari*, the elements inclining in reverse, and into it run *ashi* and *yo* with *ko-nie* gathering and fine *sunagashi* and *kinsuji* passing through. The *nioiguchi* tends to sink to a subdued *shizumi*, the calm, slightly dimmed temper that the published sources name again and again as the mark of the Motoshige hand. The *boshi* enters in *midare-komi* and turns back pointed, at times a *ko-maru* or a *yakizume* sweep.
The *jigane* keeps the attribution in Bizen even where the temper alone might read as *Soden*. He forges a standing *itame*, often run through with *nagare-hada* and mixed with *mokume* and patches of *jifu*, the *ji-nie* thick and *chikei* entering, the grain a little raised. Across it rises a clear *midare-utsuri*, the bright reflection of old Bizen steel, sometimes a fainter *bo-utsuri* along the edge. The steel on his finest pieces takes a bluish-black tonality with a cold clarity, the *nioiguchi* bright and the activity within the *ha* abundant, with places where coarse *nie* glitters strongly.
His record divides into three registers. The mainstream is the *suguha*-toned, angular-*gunome* work that the published sources read as close to Motoshige, the manner that anchors his many *o-suriage* *mumei* attributions. Against it stands a rare exception, the *ubu* signed *tachi* dated Enbun 3, of which the commentary remarks that the workmanship 'is not in a Motoshige-like manner'[[c:1]], opening instead into a frank *choji-midare* with pointed *gunome* at the *monouchi*. The third register is the body of his surviving work, the greatly shortened *mumei* katana, several originally large *tachi* exceeding three *shaku*, wide in body and shallow in *sori* in the Nanbokucho mode. As with Motoshige, the published sources propose a first and a second generation across his dated span, the bold two-character signature taken for the first and the smaller signature cut 'Saemon-no-jo Shigezane'[[c:2]] for the second, a question still left for further study.
What sets him apart within the late Osafune is exactly what the judges name. His angular *gunome* and *kataochi-gunome*, his *saka-gakari* temper and subdued *nioiguchi*, and the bright *midare-utsuri* over his standing *itame* place him with Motoshige and apart from the rounder, showier Bizen of Fukuoka and Yoshioka, while the published sources read into his forging a manner that incorporates the character of Aoe, the workmanship they call 'a hand with Aoe character mixed in'[[c:3]]. On a *mumei* katana judged to him the commentary allows that views of 'Unrui or Chikakage'[[c:4]] are possible, the panel narrowing it to Shigezane only on close reading of the whole *taihai* together with the detail of *ji* and *ha*, the clear *midare-utsuri* leaving no doubt of Bizen.
For the collector Shigezane is a scarce signed name. Fujishiro grades him Jo-jo saku, and his record runs not through National Treasures or Important Cultural Properties, of which he has none, but through a single Tokubetsu Juyo and many Juyo, forty-five blades across the two tiers. The value of his best pieces lies in their documentary weight: the Tokubetsu Juyo katana with its folded-back long signature, called 'a representative work of this smith'[[c:5]]; the Karyaku 2 *tanto*, the earliest of his dated works and a foothold for his study; and a *naginata* preserved in its original form, 'a precious example that survives as a naginata without having been reshaped into a sword'[[c:6]]. Of recorded whereabouts a few are held in public collections, among them the Hayashibara Museum of Art and the Bizen Osafune Sword Museum, and the denrai of his blades passes through daimyo and old houses, the Matsudaira family with Matsudaira Ukon-no-suke Terusada and the Takasaki domain, and the Niwa family on to Tokugawa Yoshinobu. A signed Shigezane comes to light only seldom, and a privately held example, especially an *ubu* or dated one, is a notable thing for a collector to encounter, a document of how the Motoshige hand carried Bizen into the Nanbokucho.
Kaneshige (兼重) — Mainline · 1336-1392. Jūbun. Smith of the Sōden-Bizen tradition.
Shigemitsu (重光) — Mainline · 1362-1368. Jūbun, Jūyō. Smith of the Sōden-Bizen tradition.
Other smiths
Arimitsu (在光) — Mainline · 1361-1375. Smith of the Sōden-Bizen tradition.
Mitsunaga (光長) — Mainline · 1338-1361. Smith of the Sōden-Bizen tradition.
Hidemitsu (秀光) — Mainline · 1356-1361. Smith of the Sōden-Bizen tradition.
Mitsushige (光重) — Mainline · 1334-1363. Smith of the Sōden-Bizen tradition.
Morisue (守末) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Motochika (基近) — Mainline · 1384-1387. Smith of the Sōden-Bizen tradition.
Motohisa (元久) — Mainline · 1375-1379. Smith of the Sōden-Bizen tradition.
Motoshige (元重) — Motoshige group · 1288-1333. Smith of the Sōden-Bizen tradition.
Motoshige (元重) — Motoshige group · 1394-1428. This Motoshige is known from a single tanto designated Juyo at the 16th session, signed Bishu Osafune Motoshige in rather elongated characters cut with a fine chisel, the last character cut off midway where the tang was shortened. The published sources observe that its manner of signature is entirely different from that of the Motoshige blades dated Karyaku, Kenmu and Joji. They nonetheless find that its workmanship can at a glance be appraised as Motoshige.
From the style of the calligraphy the published sources place the blade close to the Oei era. Although the meikan do not state it explicitly, they write, it should be appraised as the work of the so-called second-generation Motoshige[[c:1]]. The attribution therefore rests on the signature's hand and on the workmanship, not on a date or on a generation recorded in the reference works.
The tanto is *hira-zukuri* with a *mitsu-mune*, somewhat wide, with *uchizori*, 26.9 cm long. The *jigane* is *ko-itame* tending slightly to stand, and a *bo-utsuri* rises along the edge. The hamon is a small *notare* mixed with *gunome*, with *ashi* and *yo*, and the *nioiguchi* is bright and clear. The *boshi* runs in *notare-komi* and becomes pointed, with a somewhat long turn-back. A *sanko-tsuki ken* is carved on the omote and *gomabashi* on the ura. The tang is almost *ubu*, cut down at the tip to a shallow *kurijiri*, with *sujikai* file marks and one *mekugi-ana*.
The published sources regret that the blade lacks a date but count it a valuable piece of reference material. No provenance is recorded for it.
Motoyuki (元行) — Motoshige group · 1384-1394. Smith of the Sōden-Bizen tradition.
Nagakuni (永國) — Mainline · 1334-1338. Smith of the Sōden-Bizen tradition.
Nagayoshi (長吉) — Mainline · 1362-1376. Smith of the Sōden-Bizen tradition.
Nobumoto (信元) — Mainline · 1362-1374. Smith of the Sōden-Bizen tradition.
Norikage (範景) — Mainline · 1390-1394. Smith of the Sōden-Bizen tradition.
Tadamitsu (忠光) — Mainline · 1342-1364. Smith of the Sōden-Bizen tradition.
Yoshikage (義景) — Mainline · 1375-1388. Smith of the Sōden-Bizen tradition.
Chikafusa (近房) — Mainline · 1345-1350. Smith of the Sōden-Bizen tradition.
Chikafusa (近房) — Mainline · 1356-1361. Smith of the Sōden-Bizen tradition.
Hironao (廣直) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Kagehisa (景久) — Mainline · 1345-1350. Smith of the Sōden-Bizen tradition.
Kanenaga (兼永) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Nagamitsu (長光) — Mainline · 1346-1370. Smith of the Sōden-Bizen tradition.
Nagamori (長守) — Mainline · 1331-1336. Smith of the Sōden-Bizen tradition.
Nagashige (長重) — Chōgi group · 1356-1361. Smith of the Sōden-Bizen tradition.
Nagasuke (長助) — Mainline · 1334-1338. Smith of the Sōden-Bizen tradition.
Nobuyasu (信安) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Norikage (則景) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Norizane (則眞) — Mainline · 1334-1338. Smith of the Sōden-Bizen tradition.
Sadatoshi (定俊) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Shigetsuna (重綱) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Sukehide (助秀) — Mainline · 1384-1387. Smith of the Sōden-Bizen tradition.
Sukeshige (助茂) — Mainline · 1345-1350. Smith of the Sōden-Bizen tradition.
Suketada (助忠) — Mainline · 1345-1350. Smith of the Sōden-Bizen tradition.
Suketada (助忠) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Takanaga (高長) — Mainline · 1390-1394. Smith of the Sōden-Bizen tradition.
Toshikane (俊兼) — Mainline · 1338-1342. Smith of the Sōden-Bizen tradition.
Toshikane (俊兼) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Toshimune (俊宗) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Tsunesada (恒貞) — Mainline · 1390-1394. Smith of the Sōden-Bizen tradition.
Yasuhisa (安久) — Mainline · 1368-1375. Smith of the Sōden-Bizen tradition.
Yoshimitsu (賀光) — Mainline · 1390-1394. Smith of the Sōden-Bizen tradition.
Yoshinobu (吉信) — Mainline · 1362-1368. Smith of the Sōden-Bizen tradition.
Yoshitsugu (吉次) — Mainline · 1336-1392. Smith of the Sōden-Bizen tradition.
Phase 3 · Ōei-Bizen (応永備前) · 1390 – 1441
The Oei-Bizen and Eikyo-Bizen smiths represent the resurgence of the Osafune school in Bizen Province during the early Muromachi period, an era in which a conscious revival of Kamakura-period aesthetics transformed the character of Bizen swordmaking after the bold, expansive forms of the Nanbokucho period. The school's foremost representatives are Yasumitsu and Morimitsu, described by the NBTHK as the "twin pillars" of Oei-Bizen, both active around the Oei era (1394--1428). Morimitsu is held by one tradition to have been the son of Moromitsu, a representative smith of the late Nanbokucho *ko-zori* group, and his earliest dated works bridge the transitional character of his father's generation and the fully developed Oei-Bizen idiom. The name Yasumitsu was successively inherited through as many as five generations, while the succeeding Eikyo-Bizen phase -- centered on the fourth-generation Norimitsu and his contemporary Sukemitsu -- carried the tradition forward into the mid-Muromachi period. Related smiths such as Tsuneie of the Hatakeda branch worked in a manner so closely aligned with Osafune production that the NBTHK observes there are "no grounds -- whether in workmanship, the character of the signature, or any other point" by which their work could be distinguished from the main line.
Within the Oei-Bizen manner, two principal modes of tempering are recognized. The first is a brilliant *midare-ba* in which open, relaxed *gunome* with *koshi-biraki* -- widely opened bases -- is mixed with *choji*, forming what the NBTHK describes as "a splendid, large-patterned, flamboyant *midare*." The second is a calm *suguha* of restrained, archaic tone that can, at first glance, "call to mind the workmanship of the Kamakura-period Ichimonji school or earlier Osafune traditions." In both modes the school's identity is revealed through shared forging characteristics: *itame-hada* mixed with *mokume* in which the grain stands out conspicuously, with dark lines resembling *chikei* entering the *jihada* and *midare-utsuri* or *bo-utsuri* standing prominently in the ground. The *hamon* characteristically incorporates *gunome* with widely opened hips, *ashi* and *yo* entering well, the temper *nioi*-dominant with *ko-nie* and a *nioiguchi* that is "bright and clear." The *boshi* assumes the idiosyncratic form popularly termed the "candlewick" (*rosoku no shin*), becoming pointed at the tip -- a diagnostic hallmark of the school. A further point of connoisseurship is the finishing of *bo-hi* with rounded ends (*maru-dome*) above the *machi*. The transition from Oei-Bizen to Eikyo-Bizen is marked by Norimitsu's development of a somewhat intermediary character, retaining the *koshi-biraki gunome* and bright nioiguchi of the earlier masters while introducing tighter grain and elements that point toward the eventual Sue-Bizen style. Moromitsu's earlier production establishes the bridge from the opposite direction, his *ko-zori* period works showing "signs foreshadowing the style of Oei-Bizen" in their more flamboyant midare passages.
The ideal pursued by the Oei-Bizen and Eikyo-Bizen smiths "appears to have been a revival of the Kamakura period," visible in their elegant *tachi* proportions and in the deliberate re-creation of *choji* tempering that had fallen out of favour during the Nanbokucho period. Yet the NBTHK consistently emphasizes that the school's own distinctive character is always discernible beneath this revivalist surface. Yasumitsu's production spans every format -- *tachi*, *katana*, *wakizashi*, *tanto*, and the exceedingly rare *omi-yari* -- and he is praised for leaving behind "highly skilled works in every format." Morimitsu's finest tachi preserve their original *ubu nakago* with imposing, deeply curved forms that convey the grandeur of an earlier age, while the vigorous internal activities within the tempered edge bring forth his strengths "without reserve." Both masters' works are consistently described as *kenzen* -- sound and well-preserved -- with a *jigane* of superior quality possessing an *urumi* richness. The school's influence pervaded early Muromachi sword production, and the Eikyo-Bizen continuation through Norimitsu ensured that the Osafune tradition maintained vitality and refinement well into the fifteenth century. Whether in the commanding vigour of the large-pattern choji-midare or in the quiet classical elegance of the suguha mode, the Oei-Bizen and Eikyo-Bizen smiths collectively represent one of the most accomplished chapters in the long history of Bizen swordsmithing.
Yasumitsu (康光) — Three Mitsu · 1394-1428. Jūbun, Jūbi, Tokujū, Jūyō. Yasumitsu of Osafune worked in Bizen Province in the early Muromachi period, around the Ōei era (1394–1428), the years in which a flourishing group of smiths revived Osafune after the slump of Nanbokuchō. The published sources call that group *Ōei-Bizen*, and they place Yasumitsu, with Morimitsu, at its head: "Yasumitsu, together with Morimitsu, stands as the twin pillars among the Bizen smiths of the early Muromachi period collectively termed Ōei-Bizen." Beside the two leading hands they name Iesuke, Tsuneie and Sanemitsu as lesser masters of the same circle. The school's ideal, the sources say, was a return to the Kamakura period, an aim visible in its revival of the *tachi* shape and of the *chōji* hamon that had fallen out of use under Nanbokuchō. He works in the Osafune line, and his dated work runs densely through the Ōei years, the long signature *Bishū Osafune Yasumitsu* cut toward the *mune* with the date on the reverse.
His prime and most characteristic hand is a flamboyant one. Over an *itame* mixed with *mokume*, the grain standing, the temper rises into a large-pattern *chōji-midare* built on *gunome* whose base opens wide at the waist, the *koshibiraki* form the published sources treat as the school's own. *Ashi* and *yō* enter abundantly; the line is *nioi*-based with *ko-nie*, slight *sunagashi* and fine *kinsuji* playing through, *tobiyaki* scattering at times, the *nioiguchi* bright and clear. The *bōshi* enters *midare-komi* and turns back to a pointed, tongue-like tip, with *hakikake* brushed through it. This turnback is his signature feature and the school's: the sources single out "a *bōshi* whose tip becomes pointed, the characteristic form generally called the *rōsoku-no-shin* (candle-wick)." It is the trait by which Ōei-Bizen separates itself from the Kamakura revival its sugata and *chōji* otherwise evoke.
The *jigane* is the same throughout his work and is itself a kantei point: a standing *itame* thickly mixed with *mokume*, sometimes flowing, fine *ji-nie* adhering like dust and *chikei*-like dark lines entering, what the sources render as *chikei-fū no kane*. Across it stands a reflection, and the sources distinguish two kinds: a straight *bō-utsuri* or *sugu-utsuri*, and a *midare-utsuri* that they read as the more archaic, recalling late-Kamakura Osafune. Of one *tachi* the published commentary remarks that its *utsuri* is "not the *bō-utsuri* often seen in this period, but instead shows *midare-utsuri*." It is the standing, *mokume*-bearing *itame*, not the smoother Kamakura *jigane*, that the judges use to fix the attribution. A *bō-hi*, often with a paired *soe-hi*, is finished round above the *machi*, a school tell, and the *koshimoto* may carry *bonji*, a *sankozuka-ken*, or carved deity names.
Alongside the flamboyant *midare* the sources mark a second, calm hand. It is a *chū-* or *hoso-suguha*, the *nioiguchi* tight, bright and clear, faintly broken with *ko-gunome* and *saka-ashi* and frayed along the edge with *hotsure* and *kuichigai-ba*, the *bōshi* running straight to a *ko-maru*. The judges note this *suguha* hand is comparatively common in him, and more his than his fellow master's: "the *suguha*, it would seem, is found rather more in Yasumitsu than in Morimitsu." His signing follows the registers that scholarship uses to sort the generations. His signed work is overwhelmingly *ubu* and long-signed with an Ōei date; two-character *mei* are comparatively rare and tend to carry no date. The published sources record dated work of the name from Ōei, Shōchō, Eikyō and Kakitsu, and the common reading takes the pieces dated after Shōchō as a second hand. The reference works place the Yasumitsu who styled himself Uemon-no-jō as the first generation, active in the Ōei years, count five generations of the name down to the end of Muromachi, and assign a Sakyō-no-suke working in the Eikyō and Bunan eras, the so-called *Eikyō-Bizen*, to the next, whose temper is smaller in pattern and judged a touch inferior; the strict division between the generations the sources leave open for further study.
Within the Ōei-Bizen pair the two masters share the school manner, and the working distinction a collector draws between them is a fine one the sources state in their own words. Of a *midare* whose teeth point at the head the commentary observes that this is "a hamon generally found rather more in Yasumitsu than in Morimitsu," and the same is said of the calm *suguha*. His *suguha* can deceive: at a glance it recalls late-Kamakura Osafune, and where the *nioiguchi* sinks and *saka-ashi* enter it can evoke Aoe, the sources writing of one such blade that "it has tempered a *suguha* of tight *nioiguchi*, so as to suggest Aoe, yet this kind of workmanship is seen from time to time in Yasumitsu." The attribution settles back on him by the standing *itame*-*mokume* hada and the Ōei sugata. The religious carving he cuts at the *koshimoto*, *bonji*, the *sankozuka-ken*, names such as Hachiman Daibosatsu, recurs across his signed work, the name Marishiten at times answering Hachiman Daibosatsu on the other face, and on one blade the published sources single out a large *sankozuka-ken*, 「此の工にまま見られる大振の三鈷附剣の彫」, a carving occasionally seen in this smith.
Fujishiro grades him *Jō-jō saku*, and his work carries weight in the designation record: four of his blades are Important Cultural Properties and four are Tokubetsu Jūyō, with thirty-four Jūyō beneath them, thirty-eight in the Tokubetsu Jūyō and Jūyō tiers together. He is almost entirely signed, forty-seven signed pieces against none unsigned in the official record, and he left accomplished work in every form: *tachi*, *katana*, *wakizashi*, *tanto*, and even a rare *ubu*-signed great spear, the published sources noting that signed Ōei-Bizen spears are extremely scarce. His blades carry a distinguished provenance, ten recording a history through the Yamauchi lords of Tosa, the Nabeshima, Maeda and Naitō houses, the Koide of Sonobe in Tanba, the Imperial Family, and the rōnin Horibe Yasubei (Taketsune) of the Akō affair. The Important Cultural Properties are *tachi* held by shrines, at Futarasan Shrine in Tochigi, Kakegawa Shrine in Kōchi, Nangū Shrine in Gifu and Yoka Shrine in Saga. The Futarasan blade is 108.5 cm long and dated to 1417 by its plate, and the Nangū blade is recorded as a *mokume* forging with a *saka-chōji*. They are held as patrimony and do not trade. Of recorded whereabouts his blades sit largely in shrines and museums, among them Atsuta Jingū, Ise Jingū, Nikkō Tōshōgū, the Yūtoku, Hayashibara and Bizen Osafune sword museums, and the British Museum. A Yasumitsu in the Tokubetsu Jūyō or Jūyō tier is not wholly beyond reach, for the corpus is large for so prized a name, but the finest survive in held collections and one comes to open hands only from time to time, a landmark of early-Muromachi Bizen when it does.
Morimitsu (盛光) — Three Mitsu · 1394-1428. Jūbun, Jūbi, Tokujū, Jūyō. Morimitsu of Osafune, who worked under the title Shuri-no-jō, stands with Yasumitsu as one of the twin pillars of the early-Muromachi Bizen smiths the published sources group together as Ōei-Bizen (応永備前). In the Ōei era (1394 to 1428), after the great *ōdachi* of the late Nanbokuchō had fallen out of fashion, smiths such as Morimitsu, Yasumitsu, Iesuke and Tsuneie revived the Osafune workshop with work of notably elevated refinement, and the published commentary on a dated *tachi* of 1405 names him, with Yasumitsu, "the most technically complete smith" of the group[[c:1]]. The sword-mei reference works record him as of the line of Osafune Moromitsu (師光), one tradition holding him Moromitsu's son. His dated work is plentiful and runs densely through the Ōei years, his oldest a *tachi* of Meitoku 5 (明徳五年), that is 1394, his cyclic dates reaching from the early Ōei into the 1420s.
The ideal the Ōei-Bizen smiths pursued was a return to Kamakura, and the published sources say their work can at a glance recall the Ichimonji lineage and the classical Osafune of Mitsutada and Nagamitsu, in the graceful *tachi* proportions and in the revival of a *chōji*-bearing temper. What is Morimitsu's own, and the school's, declares itself elsewhere. His prime and typical hand is a large-patterned, flamboyant *midareba* built on a *koshibiraki-gunome*, a *gunome* that opens wide at its waist, into which *chōji*, *ko-gunome* and angular and slightly pointed elements are mixed; *ashi* and *yō* enter abundantly, the line is *nioi*-dominant with *ko-nie*, fine *kinsuji* and *sunagashi* run through it, bead-like *tobiyaki* sometimes scatter, and the *nioiguchi* is bright. Within this the gunome and chōji heads run broad and loosely rounded, a feature the published sources mark as his particular see-here: of one *tachi* they note that "chōji with rounded heads are observed"[[c:2]], and of his finest that the heads of the *midare* are "as loosely and broadly rounded as could be"[[c:3]], in which his strengths show most plainly. It is the working distinction a collector draws against Yasumitsu, whose *midare* heads tend rather to point.
The forging beneath is an *itame* mixed with *mokume*, with some *nagare* and a tendency for the grain to stand, the *jihada* carrying fine *ji-nie* and, in the larger pieces, a *chikei*-like dark steel woven through it. Over this the *jigane* throws up *utsuri*, most often a *midare-utsuri* but frequently, as the published sources note of this school, a *bō-utsuri*, a linear reflection standing along the *ha*; on the calmer blades a clear *sugu-utsuri* runs by the edge. The *bōshi* turns *midare-komi* and points, the tongue-shaped tip the judges liken to a candle-wick, the "rōsoku no shin"[[c:4]] they return to again and again as the defining Ōei-Bizen turnback. The carving is the other constant: a *bō-hi*, often with a *soe-hi*, finished round above the *machi* in *maru-dome*, a school tell, and on the lower body religious *horimono* in the Osafune carving tradition the published sources trace from Nagamitsu and Kagemitsu, *bonji*, a *sankoken*, *gomabashi*, *Kurikara* (倶利迦羅) and carved deity names, among them "Hachiman Daibosatsu"[[c:5]].
The published sources name two hands in him. Beside the flamboyant *midare* they record a quiet and elegant *suguha*, a *chū*- or *hoso-suguha* of *ko-nie-deki* whose *nioiguchi* is tight, bright and clear, faintly broken with *ko-gunome* and a sunken *saka-ashi*, the edge sometimes frayed with *hotsure* into a *kuichigai-ba*; on it the *bōshi* runs straight to a *ko-maru* with a slightly pointed turn. This second hand they call comparatively scarce in him: in the commentary on a wakizashi the NBTHK writes flatly that "compared with Yasumitsu, Morimitsu has few examples in suguha"[[c:6]], which is the chief discriminator between the twin pillars, Morimitsu the more *chōji*-rich and flamboyant, Yasumitsu the more given to the calm straight temper. His *tachi* bear the distinction out. His *tanto* do not: on them *suguha* is the usual temper, and the notes to the *tanto* recorded in Honma's inventory of the Imperial collection say that "*suguha* and *midareba* alike were his forte"[[c:7]], adding that a *sugu-utsuri* standing in the *jigane* is a point not to be overlooked. A third, temporal manner the published sources draw from his oldest dated blades: the Meitoku 5 *tachi* and the earliest Ōei pieces work small-patterned, a *gunome* with *ko-notare* and varied teeth that runs close to the previous era's *ko-reba* (small-curvature) school, the signature too cut small in the older manner, and the judges prize these as material for studying his transition into full Ōei-Bizen.
Where his suguha hand grows most archaic it borders the late-Kamakura Osafune, and the published sources note that one such *tachi* "at a glance recalls Kagemitsu or the Unrui, but the bōshi differs"[[c:8]], the candle-wick turn the feature that gives the Ōei date away; of another they say it could be "mistaken for late-Kamakura Osafune or the Unrui." A *suguha* carrying *saka-ashi* can in turn evoke Aoe, yet here too the standing *mokume*-bearing *itame* and the *sakizori* *sugata* settle the appraisal on Morimitsu. The lineage closes downstream as well: the 盛光 name continued, and one *tachi*'s commentary states that "the dates seen in his work run from Ōei into Bunmei, and across that span a first and a second generation exist"[[c:9]]. The corpus on record is overwhelmingly the Ōei *shodai*, the Shuri-no-jō. A *tanto* signed in mixed kana, Bishū Osafune Morimitsu, the published sources place probably in the Bunmei to Eishō years, the work of a later holder of the name, and they call a *tanto* signed with the title alone a rare and useful reference for the first generation. With Yasumitsu he is the standard by which later Sue-Bizen looked back, the *koshibiraki-gunome* and candle-wick *bōshi* carried forward as the Bizen mainstream of the later Muromachi.
He is graded *Jō-jō saku* by Fujishiro, and the designation record behind his name is substantial: three of his blades are Important Cultural Properties, with five at Tokubetsu Jūyō and forty-eight at Jūyō, fifty-three in the Tokubetsu Jūyō and Jūyō tiers together. He left accomplished work in every form, *tachi*, *katana*, wakizashi and *tanto*, and a relatively large number survive; the published sources call several his masterworks, naming one *tachi* "the white of Morimitsu's work"[[c:10]], handed down in the Kishū Tokugawa Family. The provenance recorded against his blades carries names of standing, the Kishū Tokugawa, the Akimoto, Nanbu and Satake families, and shrine collections at Tanzan and Yasukuni, and four *tanto* are recorded in Honma's inventory of the Imperial collection. A handful are held forever in the Important Cultural Property tier and can never come to market; his Tokubetsu Jūyō and Jūyō blades are heritage long held, in public collections and in old private hands, and come into open circulation only from time to time. For a leading Ōei-Bizen master they are not beyond a patient collector's reach, but neither are they readily found, and a signed and dated Morimitsu of the Shuri-no-jō is a thing of consequence whenever it appears.
Moromitsu (師光) — Three Mitsu · 1387-1428. Jūbun, Jūyō. Moromitsu is a Bizen Osafune smith of the late Nanbokuchō period whose dated tachi run from the Eiwa and Ōan eras through Meitoku and into the Ōei era. The published sources record him in the Meikan as 'the son of Rinkō and the father of Morimitsu'[[c:1]], the elder name standing one generation before the Ōei-Bizen master, and they place him among the late-Nanbokuchō Osafune smiths grouped together as the Kozori, the small-curvature makers: he is read as 'one of the representative smiths of the later Nanbokuchō group commonly described as the small-sori makers'[[c:2]]. Two generations worked under the name, and the Ōei-dated blades are read as the second, though the commentary grants that strict separation of the hands awaits further study. His record is above all documentary: the published sources return again and again to his *ubu*, signed and dated blades as reference material for the Osafune smiths at the threshold of the Muromachi age.
His characteristic hand is a small-patterned *gunome-midare* whose valleys open toward the *koshi*. Over the body of the temper he sets *ko-gunome*, *ko-notare*, pointed and angular elements and a little *chōji*, the whole running small and subdued, what the published sources call *kozumu*, with *ashi* and *yō* entering, the temper *nioi*-dominant and laid with *ko-nie*, and fine *sunagashi* sweeping through. The *bōshi* runs in *midare-komi* and turns back with a pointed tendency or a small *ko-maru*. It is a manner of restraint rather than display, and the judges name that restraint directly: his work, they write, 'is more subdued in comparison with makers such as Morimitsu and Yasumitsu'[[c:3]], the same Bizen idea tempered on a smaller, plainer scale than the Ōei masters who came after him.
The *jigane* is the constant beneath that quiet edge. He forges an *itame*, frequently flowing and mixed with *mokume* and standing grain, the steel taking *ji-nie* and at its best a clear *bō-utsuri* running straight along the blade, while on his fuller late pieces a *midare-utsuri* stands and a darkened, *chikei*-like iron enters the *jigane*. Over it the hamon keeps to its small irregular line, the *nioiguchi* inclined to tightness, the activity carried in *ashi* and *yō* and in *sunagashi* rather than in towering clusters of clove-flower, so that *ji* and *ha* together present the irregular, finely worked surface the sources hold typical of the Kozori group.
His record divides into more than one register. Most of his signed blades are tachi of the *ko-sori* type, but a smaller body of work abandons the *midare* for a *suguha*-toned temper carrying *ko-gunome* and a *kataochi*-like manner, the *bōshi* finishing in *hakikake* with a *yakitsume*. This quieter register is seen on a small *hira-zukuri* tantō dated Shitoku 4 (1387), carved with a *sankozuke-ken* on the *omote*, and on a rare *ken* dated Ōei 5 (1398), of which the published sources observe that 'examples of ken are few in any period'[[c:4]] and call it 'a notably rare piece as a ken by Moromitsu'[[c:5]]. On his finest late tachi the manner instead widens: the *midare* valleys open further and *tobiyaki* and *muneyaki* appear, features the judges read as 'already showing signs that foreshadow the style of Ōei-Bizen'[[c:6]].
What sets Moromitsu apart is exactly this threshold position. He works in a smaller, plainer pattern than the Osafune masters of the Nanbokuchō height, and his temper is held more subdued than that of his son Morimitsu and of Yasumitsu in the next age; yet his own *koshi*-open *gunome*, his straight *bō-utsuri* and the opening *midare* of his late tachi look forward to the Ōei flowering of the school. The published commentary draws the point as connoisseurship: because his *ubu*, dated blades carry a signature 'sharing points in common with Bizen works of the Ōei era, this piece constitutes valuable source material for research into Bizen smiths of this period'[[c:7]]. The published sources accordingly set his dated blades between the Nanbokuchō Osafune mainstream and Ōei-Bizen.
For the collector Moromitsu survives chiefly as signed, dated tachi: three Important Cultural Properties and twelve Jūyō Tōken, and no National Treasures. The three Important Cultural Properties are known by their plates. A *tachi* at Kitano Tenmangū in Kyoto, signed Bishū Osafune Moromitsu and dated Ōei 9 (1402), carries a *ko-notare* mixed with *gunome*. A *tachi* signed Moromitsu at Hie Shrine in Tokyo has a *notare* mixed with *chōji*. A *tachi* at Kotohira-gū, whose signature survives as Bishū Osafune with a Meitoku date, is attributed to him and tempered in *gunome* with *ko-midare*. His provenance is real and notable: a tachi of his passed to the Imperial Family, one dated tachi passed by shogunal bestowal in Hōreki 9 to the Iwaki house, lords of Kameda Castle, and one of his superior late tachi the sources call 'a fine work among his oeuvre'[[c:8]] and record as 'a sword transmitted in the Kuroda family'[[c:9]]. The Important Cultural Properties are held by shrines as patrimony and do not trade. What remains to private collections is the Jūyō tier, and since those blades are mostly held rather than offered, a signed Moromitsu of the *ko-sori* type comes to light only from time to time. A privately held example is an exactly dated document of how late Osafune turned toward Ōei-Bizen.
Koremitsu (是光) — Three Mitsu · 1394-1428. Jūbun. Smith of the Ōei-Bizen revival.
Other smiths
Norimitsu (則光) — Three Mitsu · 1394-1428. This entry for Osafune Norimitsu of the Oei era rests on a tanto signed Bishu Osafune Norimitsu and dated Oei 33 (1426), second month, designated Juyo Token at the 37th session in 1991. The published sources observe that the Norimitsu blades usually encountered date from between Oei Bizen and Sue-Bizen[[c:1]]. Yet the name goes back to the end of the Kamakura period, to a pupil of Nagamitsu whose tanto dated Kagen 3 survives. They then give the meikan sequence: 「銘鑑ではこれを初代として、二代を延文頃、三代応永で家助の子とし、四代が永享頃、以降室町末期まで名跡の継承があったことを記している」 (the meikan count the Kagen smith as the first generation, place a second around Enbun and a third in Oei as the son of Iesuke, and a fourth around Eikyo, with the name inherited to the end of the Muromachi period).
The tanto matters chiefly as a date. Until it appeared, no work of Norimitsu was known between the Kagen tanto and the Oei era, so its documentary value is held to be very high[[c:2]]. It falls in the Oei era to which the meikan assign the third generation, although the paper itself does not number its maker.
In form the tanto is *hira-zukuri* with an *iori-mune*, long for its width and thick, which the published sources call characteristic of Oei Bizen. The *ko-itame* is tight, with fine *ji-nie* thickly attached, *chikei*, and a straight *utsuri* along the edge. The hamon is a *chu-suguha* with a shallow *notare* feeling, *ko-nie* and a bright *nioiguchi*, and the *boshi* runs straight to a *ko-maru*. *Gomabashi* are carved on the omote and a *koshi-bi* on the ura. The paper sums it up as an elegantly tempered *suguha* of excellent workmanship overall[[c:3]].
A second blade, a tachi signed with the two characters Norimitsu, was designated Juyo Token at the 26th session in 1979. It is undated, and its paper names no generation; it is placed with this entry by default. The paper repeats that the first Norimitsu is said to have been a pupil of Nagamitsu, and that the line lapsed partway and was revived in the Muromachi period[[c:4]].
The tachi is shortened yet keeps a high sori, a fairly wide body and a thick kasane. Its *itame* is tight with *utsuri*. The hamon is a showy *midare* of *choji* mixed with *gunome*, *nioi*-dominant with *ko-nie*, and the *boshi* runs in and turns back with a *ko-maru* feeling. The published sources call it bright work in the Oei Bizen manner and one of the finest among Norimitsu blades[[c:5]].
Sanemitsu (實光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yasumitsu (康光) — Three Mitsu · 1424-1443. Smith of the Ōei-Bizen revival.
Yoshikage (吉景) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Hidekage (秀景) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Naomitsu (尚光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Sadaie (貞家) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Shigemitsu (重光) — Three Mitsu · 1394-1451. Smith of the Ōei-Bizen revival.
Shigetoshi (重俊) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Shigetsuna (重綱) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Tomosada (友貞) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Tsuneie (經家) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yasunaga (康永) — Three Mitsu · 1429-1441. Smith of the Ōei-Bizen revival.
Chikafusa (近房) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Hisatsugu (久次) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Hisatsugu (久次) — Three Mitsu · 1429-1441. Smith of the Ōei-Bizen revival.
Katsumitsu (勝光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Kiyokage (清景) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Kiyomitsu (清光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Morimoto (守元) — Three Mitsu · 1428-1429. Smith of the Ōei-Bizen revival.
Nagamitsu (長光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Nagatomi (永富) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Nobukuni (信國) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Tokimitsu (時光) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Toshitada (俊忠) — Three Mitsu · 1429-1441. Smith of the Ōei-Bizen revival.
Toshiyuki (利行) — Three Mitsu · 1429-1441. Smith of the Ōei-Bizen revival.
Tsuguhiro (次弘) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yasuie (康家) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yasunaga (安永) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yoshikuni (吉國) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Yukimasa (行正) — Three Mitsu · 1394-1428. Smith of the Ōei-Bizen revival.
Phase 4 · Sue-Bizen (末備前) · 1441 – 1596
The last great chapter of Osafune unfolds in the Eisho and Tenbun years of the late Muromachi, when the riverside workshop turned its accumulated craft toward an age of constant war. Where Oei-Bizen had looked backward, reviving the *tachi* shape and the *choji* temper of the Kamakura masters under Yasumitsu and Morimitsu, Sue-Bizen faces forward into Sengoku demand. The leading hands carry the same family characters one generation further: the Sukesada group, headed by Yosazaemon-no-jo Sukesada and the Hikobee-jo Sukesada said to be his father, alongside Katsumitsu (often Jirozaemon-no-jo), Munemitsu, Tadamitsu of the Heiroemon-jo line, and the Kiyomitsu smiths Magoemon-no-jo and Gorozaemon-no-jo. The setsumei draw a sharp line through their output. Commissioned blades, *chumon-uchi*, were signed with full *zokumyo*, dated, and frequently inscribed with the name of the ordering party, as on the Katsumitsu and Sadamitsu *naginata* of Meio 8 made for the Miyake of Kojima, a house that fed into the Ukita. Below them ran the bulk trade of *kazu-uchimono*, the arms that supplied the warring provinces, and it is the *chumon-uchi* masters that the designations preserve.
What the steel does in this window is distinct from every earlier Osafune register. The shape is the *uchigatana*: wide *mihaba* with thick *kasane*, pronounced *sakizori*, an extended *chu-kissaki* or *o-kissaki*, and a short *nakago* suited to the *katate-uchi* one-handed draw, a body unlike the *koshizori tachi* of Ko-Osafune or the broad Nanbokucho profile of Soden-Bizen. The forging tightens into *ko-itame* over which a *midare-utsuri* stands faintly rather than vividly, weaker than the bright reflection of the founding generation. The signature temper is the open-waisted *koshi-no-hiraita gunome*, splitting at the heads into *fukushiki* compound *midare* and mixed with *togariba* and *choji*; it is *nioi*-based with *ko-nie* and a bright *nioiguchi*, with *ashi*, *yo*, *kinsuji* and small *tobiyaki* worked through. Against this, Soden-Bizen had pushed Soshu *nie* and *notare*, while the founders had tempered flamboyant *choji* over a vivid *utsuri*. Two specialties branch off the *gunome* base: the Kiyomitsu and Tadamitsu *suguha*, calm and tightly forged, and the *hitatsura* of high-tempered pieces with long *muneyaki* and *yubashiri*, seen in the warlord-smiths Akamatsu Masanori and Ishikawa Yukihisa.
To *kantei* a Sue-Bizen blade is to read the body first and the temper second. The compact *uchigatana* sugata with thick *kasane* and a short tang fixes the late-Muromachi date; the faint *utsuri* over dense *ko-itame* keeps it in Bizen; the open-waisted compound *gunome* names the group. The masters then separate by hand: Katsumitsu is set apart by the abundant *choji* he folds into the *gunome*, yielding a more florid, brilliant *dekiguchi* than his peers; Tadamitsu and the Kiyomitsu smiths are read out by their *suguha*, with Magoemon-no-jo's *itame* standing in *mokume* to distinguish his ground. The cutting reputation is documented directly, as on the Hikobee-jo Sukesada katana of Keicho 5 carrying a *tameshi* inscription naming the tester Ichihara Hachibee. Provenance threads through the supplementary signatures: Masanori's reward blades cut for his retainers, the Miyake names tying the workshop to the Ukita, and the Shinjuro Sukesada whose few large works may have ended in the Tensho flood. The horimono carried from the mainline, *bonji* with *rendai*, *Fudo Myoo*, and shrine dedications, persist on these blades as a final mark of the line.
Sukesada (祐定) — Sukesada line · 1504-1551. Jūbun, Jūbi, Tokujū, Jūyō. A katana dated Daiei 3 (1523), made in the smith's fifty-seventh year and signed in full as Bizen no Kuni resident, Osafune Yosozaemon no Jo Sukesada, descends in the Hachisuka family and was raised to Tokubetsu Juyo. Sukesada is less a man than a house. The name belongs to the Osafune forges of the late Muromachi that scholars group as Sue-Bizen, and of these the published sources say plainly that "the most prosperous was the Sukesada family"[[c:1]]. The early reference Hayami-dashi, the published commentary notes, "lists as many as twenty-one smiths who add a personal name to the signature"[[c:2]]. Within that crowd one branch stands first, the Yosozaemon no Jo line. Its first generation was born in Onin 1, by back-count from a tanto inscribed as made at seventy-one in Tenbun 6. The published record states the ranking directly: "among them, the one who styles himself Yosozaemon no Jo is the most famous, and the most skilled"[[c:3]].
His characteristic hand is the temper the late Bizen workshops made their own. The body carries an open-waisted gunome built into a double-structured midare, the koshi-biraki fukushiki-gunome, mixed with ko-gunome-choji and pointed togariba. Ashi and yo enter richly, the nioiguchi tends to tighten, ko-nie adheres, and small tobiyaki are scattered with the nioiguchi bright. The published sources name "the double-structured gunome particular to Sue-Bizen"[[c:4]] as the mark of his typical work. Of one late work in this manner they write that it is "a typical work among Sue-Bizen blades, and among works of the same hand the most excellent representative example"[[c:5]]. The wide, complex line answers the broad mihaba and sakizori of the late-Muromachi uchigatana on which it most often appears.
The jigane is the foil to that animated edge. It is a ko-itame forged tight and well packed, fine ji-nie laid over it like dust and fine chikei woven through. On a number of signed pieces a faint midare-utsuri rises toward the shinogi, and one carries a bo-utsuri. The boshi most often runs into a small round or enters as a midare-komi, slightly pointed, with hakikake and a turnback that runs a little long. Across his blades the activity is carried in abundant ashi and yo, with kinsuji and sunagashi frequent, the temper deep in nioi and ko-nie.
Beyond the double-structured gunome he commands two further registers. One is the flamboyant face, a temper that climbs into full hitatsura with tobiyaki and muneyaki. The published sources note that hitatsura is apt to lack refinement, yet single out his examples as well made, and one is a collaboration signed jointly with Genbei no Jo Sukesada and dated in the Tenbun era. The other is the calm face, the suguha and hiro-suguha, broad and shallowly undulating, at times mixed with ko-gunome. Of these the commentary remarks that "even when he tempers a suguha he is skilled"[[c:6]], and elsewhere that he is "a master among the Sue-Bizen smiths, skilled alike in suguha and in midare"[[c:7]]. One blade sets double-structured gunome at the koshimoto and the monouchi and bridges the span between with hiro-suguha, a hamon the judges call unusual.
Beneath all this sits the chronology of the name itself. The published sources record that "there were two generations of the same name, with the change from the first to the second during the last years of Tenbun"[[c:8]], and Honma, in his inventory of the Imperial collection, likewise counts two Yosozaemon, the first dated in Eisho and Tenbun and the second in Eiroku and Tensho, noting that the Daiei 3 katana signs with the so-called four-stroke yo (四つ与) and the Daiei 5 tanto with the one-stroke yo (一与). A body of blades carries the Sukesada name with no personal name at all, judged to the house by period and quality. Within his school he is set apart by his own traits: the bright, well-packed ko-itame, the faint utsuri and the wide, double-structured gunome distinguish him from the plainer mass of late-Bizen production. His finest dated uchigatana are read as representative of Sue-Bizen as a whole, not of Sukesada alone, and his hand is the standard against which the school's unsigned blades are measured.
For the collector Yosozaemon no Jo Sukesada is a great Bizen name that remains attainable in a way the Kamakura masters are not, though never common at the top. Fujishiro grades the first generation Jo-jo saku, and the Toko Taikan values his work at 1,000 yen. He has no National Treasures. His record runs through one Important Cultural Property and one Tokubetsu Juyo blade among sixty-two Juyo, with a further file of prewar Juyo Bijutsuhin. These reach the market only rarely, and a notable event when one does. His blades are held in long-held collections and daimyo houses grounded in their own provenance. The Tokubetsu Juyo katana is described as "a blade of excellent workmanship handed down in the Hachisuka family"[[c:9]], and the Mori, Ii and Shonai Sakai houses appear among the recorded provenance of others. Two more of his blades, a Daiei 3 katana in hiro-suguha and a Daiei 5 tanto that breaks into hitatsura, are recorded in Honma's inventory of the Imperial collection. A signed and dated Yosozaemon Sukesada, broad and bright, with the open-waisted gunome reading clearly down its edge, is the late-Bizen blade a serious collector can realistically hope to encounter.
Katsumitsu (勝光) — Katsumitsu line · 1490-1529. Jūbun, Jūbi, Tokujū, Jūyō. On a katana of Eisho 9 (1512), beneath the long signature of Jirozaemon-no-jo Fujiwara Katsumitsu, the smith added a phrase of his own: "as far as my heart can reach, nothing could surpass this"[[c:1]], declaring the blade a work that fully satisfied him. The maker of that boast is the most accomplished bearer of a crowded name. The published sources record that several generations and more than a dozen smiths used the name Katsumitsu among the late-Muromachi Osafune forges collectively called Sue-Bizen, and that within that crowd the branch titled Jirozaemon-no-jo, the son of Ukyo-no-suke Katsumitsu, is especially accomplished, counted with Yosozaemon-no-jo Sukesada and Gorozaemon-no-jo Kiyomitsu as a representative smith of the late Bizen tradition.
What the published sources name as his individuality is a matter of degree within a shared idiom. Every Sue-Bizen smith tempers the open-waisted, double-structured gunome, the *fukushiki-gunome* that is the diagnostic late-Bizen line; Katsumitsu builds his prime on the same base, well-packed *ko-itame* carrying *ji-nie* and fine *chikei*, over which the temper rides high and bright with *ashi* and *yo* entering richly, the *nioiguchi* clear and tightening, small *tobiyaki* interspersed. The distinction the judges draw is that he mixes *choji* into that *gunome* more freely than his fellows, for a more flamboyant effect. "Compared with Sukesada," the sources write, "Katsumitsu shows more conspicuous *choji* in the temper, and the so-called crab-claw (*kani-no-tsume*) irregularities appear relatively less often"[[c:2]]. On his finest dated wakizashi the same point is put positively: he is "particularly adept at a more splendid workmanship in which abundant *choji* are intermingled within the *midare*"[[c:3]].
The *jigane* is the constant beneath that flamboyance. It is the well-packed *ko-itame* of late Osafune, *ji-nie* attaching, *chikei* finely woven, in places a little standing or flowing; on the best pieces the *ji-nie* lies fine as dust (*ji-nie michin*). The classical *midare-utsuri* of old Bizen has largely gone from this late steel and appears only faintly on a few blades; one Eisho-2 katana is read as showing little *utsuri* precisely because the *ji-nie* is so strong, so that the *jigane* itself looks powerful. The *boshi* answers the *hamon*, running *midare-komi* to a *ko-maru* or a pointed tendency, *hakikake* at the tip and a turnback. Across both faces lie the devotional carvings of Sue-Bizen, a *kurikara*, *bonji* with *suken*, and shrine names such as Hachiman Daibosatsu and Amaterasu Kotaijin, which the sources are careful to call the work of collaborating *horimonoshi* rather than the smith's own hand.
Katsumitsu is the most frequent collaborator of the house, and a large part of his record is joint work. With his brother Sakyo-no-shin Munemitsu he cut the blades long prized as *Munekatsu gassaku*, the two names signed together on katate-uchi uchigatana and wakizashi; on one Eisho-7 wakizashi the inscription explicitly reads "younger brother, Sakyo-no-shin Munemitsu"[[c:4]], a line the sources call extremely important material urging a reexamination of the Osafune genealogy. The single most celebrated work is the joint naginata with Yosozaemon-no-jo Sukesada, dated Eisho 18, a bold and magnificent *naginata-zukuri* with the incised inscriptions Hagun-no-ken and Sanshin-soku-ittai, commissioned by Ukita Yoshie and called "a masterpiece among Sue-Bizen naginata"[[c:5]]. A katana of Daiei 3 is a joint work with his son Jirobei-no-jo Harumitsu. One entry places his working span roughly from the Meio into the Kyoroku era[[c:6]], another from Chokyo into Tenbun. Late in that span, dated Kyoroku 2, he forged a father-and-son joint katana with another son, Shuri-no-suke Katsumitsu. Its temper is deep, as on the work of Yosozaemon-no-jo Sukesada, the *nioiguchi* loose and the lower half breaking into large *midare*; the sources call it a blade to be taken as typical of Sue-Bizen work[[c:7]] and the father-and-son signature valuable as documentation. Beside the flamboyant *gunome* he tempers a calm, broad *suguha* and *hiro-suguha* with equal command, the sources observing that the master famed for flamboyant *midare* through the Juyo-Bijutsuhin Asa-arashi shows, with his uncle's help, an advanced skill even in a straight temper. A katana dated Entoku 2 (1490), signed Jirozaemon Katsumitsu, carries a *chū-suguha* over a cleanly packed *itame*, *ashi* and *yō* working well and a strongly shining *nie* that in places spills into the *ji*; the sources note that besides his usual work he is skilled at such a straight temper too[[c:8]]. A tanto of Meio 8 (1499) takes the very thick, narrowing *yoroi-doshi* form, its temper a *nie*-based *suguha* with frayed edges, *uchinoke* and *kuichigai*, which the sources judge an excellent piece of Sue-Bizen work.
What sets Katsumitsu apart within his own school is therefore the reach of his hand rather than a single tell. His bright, *choji*-mixed *gunome* distinguishes his prime from the plainer Sukesada manner, while his command of a clear *suguha* and his ambition outside the standard idiom mark the upper edge of late-Bizen workmanship. The clearest sign of that ambition is a signed Bunki-2 tachi, slender with *sakizori*, that abandons the contemporary uchigatana for a *suguha*-based *ko-midare* with *ko-choji* over a *ko-itame* in which a *midare-utsuri* rises; it is read as "a piece conceived with the late-Kamakura Osafune of Kagemitsu and his fellows as its aim"[[c:9]], an unusually forceful work, though the sources add that its technique does not reach its model. At the far edge a Daiei-6 tanto carries the temper up the *mune* into a *hitatsura*-like *muneyaki* with *tobiyaki*, more varied than usual. These outliers map the breadth across which the Sue-Bizen Katsumitsu hand can be known.
Katsumitsu was a productive smith and signed and dated work survives in fair number, yet little of it can ever change hands. Fujishiro grades him Sai-jo saku. He has no National Treasures; his record runs instead through one Important Cultural Property, the joint katana with his son Harumitsu held at Nogi Shrine in Tokyo and inscribed Ichigo-ikkoshi, and through three blades recorded in Honma's inventory of the Imperial collection: a katana and a *tanto* signed Bishu Osafune Katsumitsu with Eisho dates, and a katana signed jointly with his brother Sakyo-no-shin Munemitsu. The patrimony continues in the daimyo houses and old collections grounded in their own provenance, the joint naginata for Ukita Yoshie a treasured heirloom of the Sendai Date family, other blades recording owners such as Uyama Hida-no-kami and Kitamura Yukinao, the Jubi katana Asa-arashi once held by Matsushita Masatoshi. Beyond these, of the twenty-nine designated works on record, twenty-four sit in the Tokubetsu Juyo and Juyo tiers. Most of them are held rather than traded, so a signed Jirozaemon-no-jo Katsumitsu comes to market only from time to time, and a dated, devotionally carved example, the kind on which the smith once wrote that nothing could surpass it, is a rewarding thing for a collector of late Bizen to encounter.
Katsumitsu (勝光) — Katsumitsu line · 1469-1487. Jūbun, Jūbi, Tokujū, Jūyō. A katana dated the second month of Bunmei 16 (1484), signed in a large long mei Bizen no kuni ju Osafune Ukyo-no-suke Katsumitsu and incised below its bo-hi with the prayer-texts Tenka-taihei kokudo-an'on and Fuki-manpuku kai-ryo-mansoku, is the one work of this smith raised to Tokubetsu Juyo. Katsumitsu is one of the representative names of the mid- and late-Muromachi Osafune smiths called Sue-Bizen, and the published sources record more than ten smiths signing it from the middle of the Muromachi period onward. The signature compendia single out those who added a common name to the mei, above all Ukyo-no-suke Katsumitsu and his son Jirozaemon-no-jo. Ukyo-no-suke, the maker of this record, is placed ahead of his son in seniority and named the elder brother of Sakyo-no-shin Munemitsu (右京亮と銘するものは次郎左衛門尉よりは先輩であり). The same entry counts his technique among the best of Sue-Bizen[[c:1]].
His characteristic hand is the compound gunome of Sue-Bizen, carried higher and brighter with chōji. The published sources say that while his work often shows that gunome, he is especially adept, compared with the other Sue-Bizen smiths, at a more flamboyant effect with abundant *chōji* mixed into the midare[[c:2]]. On the Tokubetsu Juyo katana the temper mixes open-waisted gunome, chōji, ko-gunome and ko-chōji, with ashi and yō entering well, nioi prevailing with ko-nie, and yubashiri and a bright nioiguchi. The NBTHK reads it as showing the typical manner of Katsumitsu within Sue-Bizen work[[c:3]]. A solo katana of Bunmei 10 tempers chōji, ko-chōji and togariba in a high yakiba, with kinsuji, sunagashi and small tobiyaki in the lower half.
The jigane is a ko-itame or an itame mixed with mokume, well packed and flowing in places, with ji-nie that on the Bunmei 10 katana is fine as dust and with fine chikei. A midare-utsuri rises over it on most of his blades. Of a Bunmei 18 wakizashi made with Munemitsu, the published sources write that its midare-utsuri is clearer than on Bizen work of the same period and its temper rich in variation with conspicuous chōji[[c:4]]. The bōshi enters in midare and turns back in a ko-maru or with a pointed tendency. Both faces carry the devotional carving of the school: bō-hi in maru-dome with bonji below, kurikara, a sankō-tsuki-ken and the shrine name Hachiman Daibosatsu. The published sources take these to be the work of the school's specialist carvers. The shape is the late-Muromachi katate-uchi uchigatana, broad and thick with sakizori and a short tang with a flared end.
Most of his record is joint work. Eight of his ten NBTHK-designated blades are collaborations, seven of them with his younger brother Sakyo-no-shin Munemitsu, the two names cut in two lines, most over dates of the Bunmei era. Several were forged away from Osafune, at Kusakabe in Bitchu and at Kojima in Bizen. Two more Kusakabe pieces stand outside that record. A katana of Bunmei 18 (1486), tempered in a gunome of ko-nie mixed with chōji, was certified Juyo Bijutsuhin; the published sources name the pair as sons of Rokurozaemon Sukemitsu whose joint works are met comparatively often, and call this blade their representative work[[c:5]]. A wakizashi dated Bunmei 19 (1487), tempered in gunome mixed with chōji over an itame jigane, is designated an Important Cultural Property. The published sources call the Kojima wakizashi valuable material for tracing the brothers' movements[[c:6]]. They add that joint works of the two are by no means rare, yet because both smiths were highly skilled they are what sword lovers prize most[[c:7]]. A katana of Bunmei 16 adds Hikobei Tadamitsu as a third hand. Of it the NBTHK writes that it has scarcely seen another joint sword including Tadamitsu[[c:8]].
Beside the chōji-rich gunome he also tempers a calm suguha-based line, and the published sources compare it with the work of Tadamitsu. The three-way katana tempers a suguha-chō with ko-gunome, ashi and yō, sunagashi and kinsuji. The Kojima wakizashi of Bunmei 16 has a suguha base with shallow notare, hotsure and fine sunagashi, and the commentary calls it work especially often seen on Tadamitsu[[c:9]]. A katana forged with Munemitsu at Kojima in the same year tempers a suguha with a little gunome in ko-nie, the bōshi straight with a round turnback, and is valued for its inscription as much as its workmanship[[c:10]]. Another joint katana with Munemitsu tempers a chū-suguha with small ashi and a tight nioiguchi over a clean, well-packed ko-itame, carved with a suken and bonji at the waist. The NBTHK calls it typical and representative of the uchigatana of its day[[c:11]]. A tantō of Bunmei 11, made with Gorozaemon-no-jo Norimitsu when the elder smith was seventy-four, is broad, extended and very thick, with strong uchizori. It tempers a chū-suguha with a ko-gunome feeling in bright, clear ko-nie, and the NBTHK finds in it a vein of workmanship akin to Tadamitsu of the same school.
He has no National Treasures; his one Important Cultural Property is that Kusakabe wakizashi, held at the Tōshōgū in Tochigi. His NBTHK record is one Tokubetsu Juyo and nine Juyo blades, all signed and dated, most of them in the Bunmei era, and Fujishiro ranks him Sai-jo saku. The Tokubetsu Juyo katana, first designated Juyo in the seventh session, is called a rare work robust in build for its time and an excellent blade showing Katsumitsu at his best[[c:12]]. Its prayer-text inscriptions have no parallel elsewhere and were presumably made to a special order, though later smiths imitated them[[c:13]]. The Bunmei 11 tantō is accompanied by a mounting by Ishiguro Masami bearing the crests of the Okubo family, from whom it descends. Outside these, the Juyo blades are the works a collector may realistically meet, and a signed and dated Katsumitsu reaches the market only from time to time.
Sukesada (祐定) — Sukesada line · 1532-1583. Jūbi, Tokujū, Jūyō. Genbei-no-jō Sukesada is one of the foremost personal-name hands of the late-Muromachi Osafune house collectively called Sue-Bizen, the branch of the great Sukesada family identified not by the name alone but by a pair of qualities the published sources name again and again. Sukesada was the most prosperous of the late Osafune forges, signed by dozens of smiths, and the published commentary repeatedly draws the same short list out of that crowd: among the many who took the name, those who added the titles Yosozaemon-no-jō, Hikobei-no-jō and this Genbei-no-jō are the most accomplished. Within that three, Genbei-no-jō is the calm and exacting hand. His earliest dated work falls in the Tenbun years and his production continues to the closing years of Tenshō, and the swordbooks separate the name into two generations a generation apart, the first placed in the Eishō era and the second carrying the signature through Eiroku, Genki and Tenshō. He is the master of the ordered, single, carefully made blade in an age otherwise given over to mass production.
The published sources fix him by two marks, and both are worth taking in his own words. The first is his forging: of him they write that he 「鍛錬の優れている事で定評があり」[[c:1]], "he has a long-established reputation for the excellence of his forging," and elsewhere that he is robust and that 「一般に豪壮で地がねがよく、直刃調の出来を得意としている」[[c:2]], "in general his blades are powerful, his jigane is good, and he excels at suguha-toned workmanship." The second mark is that hamon. His characteristic temper is a bright, broad *hiro-suguha*, suguha-toned and shallowly undulating, into which he mixes *ko-gunome*, with *ashi* and *yō* entering richly and *ko-nie* adhering, the *nioiguchi* tightening or running bright and clear, *sunagashi* and *kinsuji* trailing through it and at times *yubashiri*. It is the quiet face of Sue-Bizen, the foil to the open-waisted gunome flamboyance of his senior Yosozaemon, and the published sources call the *suguha* he was 「直刃調の刃文を得意とする」[[c:3]], the temper he made his specialty.
The *jigane* is the constant beneath that temper, and it is the second half of his reputation made visible. He forges a well-packed *ko-itame*, often within a broader *itame*, with fine *ji-nie* settling in *mijin* like dust, *chikei* woven through, and frequently a faint *midare-utsuri* standing near the *shinogi*; on some blades a *mizukage* rises below the *machi* and the steel runs bright and clear. This is the forging the published sources call beautiful as his reputation would have it, the refinement that separates a custom-ordered Genbei-no-jō blade from the coarse run of the late Osafune forges. His blades are robust late-Muromachi *uchigatana* of the Eiroku and Tenshō type: lengthened well beyond the mid-Muromachi norm, wide in body with little taper from base to point, thick in *kasane*, deep in *sori* with *sakizori* and an extended *chū-kissaki*, the tang made long for two-handed use. The *bōshi* runs straight or *midare-komi* into a *ko-maru*, deeply tempered, often with *hakikake* and a long turnback.
Against that calm prime stands a livelier register the published sources are careful to flag as exceptional. On a handful of his blades, and most often on the *moroha-zukuri* double-edged *tantō* that the sources say are frequent in Sue-Bizen, he raises a high, varied temper built on a *koshi-biraki* and double-structured *gunome*, mixing *togariba* and angular elements, *ashi* and *yō* entering, with frequent *tobiyaki* and some *muneyaki* that break the upper body into a partial *hitatsura*, the *nioiguchi* bright. The judges note that *suguha* is his usual manner, yet they hold that even when he tempers such a *hitatsura*-flavored *midare* he does so with skill, the *ji* and *ha* alike bright and clear. The Tokubetsu Jūyō *katana* of Eiroku 1 shows the two faces at once: a broad *suguha* base whose lower half breaks into *saka-gakari midare*, *saka-ashi* and a *nijūba*-like impression, an archaic flavor the published sources suggest he drew from older Aoe and Unrui work, so that it conveys depth even among his own pieces. Of this blade the commentary says 「源兵衛尉祐定の見どころが総体によく表出している」[[c:4]], "the points of interest of Genbei-no-jō Sukesada are well manifested throughout."
What sets him apart within the house is exactly this division of labour. Yosozaemon-no-jō leads the name in renown and breadth and is read by the open-waisted, double-structured gunome that defines Sue-Bizen; Genbei-no-jō stands just below, ranked beside Hikobei-no-jō, and is read instead by his bright *hiro-suguha* and the refinement of his *ji*, which the published sources hold equal to the best of the name. He is also a smith of the documented, ordered blade. A notable share of his work bears an owner inscription beside the date, the *tameuchi* or *chūmon-uchi* custom orders the published sources distinguish sharply from ordinary *kazu-uchi-mono*: such blades, they write, are executed with a care not comparable to the mass run, so that the workmanship of both *ji* and *ha* is superior, and the commentary is plain that 「かかる作刀があるからこそ、世上末備前の名声が高い」[[c:5]], that it is precisely because works of this kind exist that the Sue-Bizen name has earned its high esteem.
For the collector, Genbei-no-jō is a name one can actually study and, with patience, acquire. Fujishiro grades him Jō-jō saku. He has no National Treasures and no Important Cultural Properties; his record runs instead through the Jūyō tier, where he is well represented, with a single Tokubetsu Jūyō *katana* and a prewar Jūyō Bijutsuhin at the top of it, some seventeen blades in the Tokubetsu Jūyō and Jūyō tiers on this record. His blades carry their own provenance in their inscriptions rather than through famous houses: the Tenbun 23 *katana* bears the ownership name Koremune Tadayori, others the patrons Hara Yohei-no-jō and Miki Yoichibei, and the Jūyō Bijutsuhin *katana* was certified to Okano Tarōmatsu of Okayama in 1949. Because his dated, signed *uchigatana* survive in fair number, a privately held example comes to market from time to time rather than once in a generation, and the commentary marks the finest of them in its own words, calling one the 「数ある源兵衛尉祐定中の屈指の優品」[[c:6]], "a peerless fine work among the many by Genbei-no-jō Sukesada." He is the rare late-Bizen name a serious collector can pursue with real hope of holding a signed, dated blade by a documented master hand.
Masanori (政則) — Sukesada line · 1489-1492. Jūbi, Tokujū, Jūyō. Akamatsu Hyobu Shosuke Masanori was a figure of considerable prominence in the late Muromachi period, serving as *shugo* (military governor) of Harima, Bizen, and Mimasaka provinces while holding important posts within the Muromachi bakufu. Although his teacher in swordmaking is not clearly known, the NBTHK observes that because Osafune Katsumitsu and Munemitsu served under his command and were active in that capacity, it may be inferred that he learned forging techniques from them. Masanori produced blades in the intervals of his martial duties, and most of his works bear ownership inscriptions — *sue-uchi*, or commissioned reward blades bestowed upon retainers and subordinates. According to the study by Oyama Kinpa, only a small number of his works survive today, making each authenticated example a particularly valuable reference piece.
Masanori's forging is characterized by a strongly *nie*-laden manner in both *jihada* and *hamon* that distinguishes his work from typical Sue-Bizen production. His *kitae* ranges from tightly forged *ko-itame-hada* to *itame* mixed with *mokume*, with *ji-nie* forming thickly and *chikei* appearing in the finer examples. The *hamon* is typically *ko-notare* mixed with *gunome*, at times incorporating *choji*-gokoro and *hako-gakatta ha*, with abundant *ashi* and *yo* entering vigorously and *sunagashi* appearing throughout. In his best works, the tempering achieves a spirited *midare* of wide *yakihaba*, while the *nie* adheres well and becomes coarse in places — a manner that the NBTHK notes differs markedly from ordinary late Bizen workmanship. One example further demonstrates an intent to pursue an upper level of *Soshu-den* skill, with *yubashiri* and *muneyaki* creating a *hitatsura*-like impression. His *horimono*, when present, bear divine titles rendered in a distinctive calligraphic style that carries the flavor of the age, differing somewhat in taste from the carvings generally seen on Osafune works of the period.
Within the tradition of warrior-smiths, Masanori occupies a singular position: a military commander of the first rank whose blades nonetheless display workmanship that the NBTHK repeatedly characterizes as excellent and superior. His *sugata* is praised as finer than that generally encountered among Sue-Bizen pieces, and his representative works are recognized as especially distinguished examples. The NBTHK further notes that pieces not previously catalogued among his known surviving works constitute reference material of particular value, underscoring the rarity and documentary importance of each authenticated blade.
Norimitsu (則光) — Sukesada line · 1462-1487. Jūbun, Jūyō. Norimitsu belongs to the Osafune lineage of Bizen Province and is traditionally identified as a student of Osafune Nagamitsu. The earliest extant works bearing the Norimitsu signature date to the Kagen era of the late Kamakura period, and the name was transmitted through numerous generations down to the close of the Muromachi period — a span encompassing perhaps more than ten successive smiths. The most celebrated works are those dated to the Kansho era, and the smith active in the Bunmei era occupies a position of particular scholarly interest, as the NBTHK notes there "remains room for research as to whether it was made by the same individual as Kansho Norimitsu or by the next generation." Critically, the Kansho-to-Bunmei-era Norimitsu stands between the Oei-era masters Morimitsu and Yasumitsu on one hand, and the later Sue-Bizen smiths Katsumitsu and Sukesada on the other, displaying an intermediate style that bridges these two periods.
Norimitsu's sword work characteristically employs *itame-hada* with *midare-utsuri* standing out in the *jihada*, and his *hamon* alternates between two principal modes: a *koshi-biraki gunome-midare* showing a *fukushiki*-like double-structured tendency with *ashi* and *yo* entering freely, and a *chu-suguha* with a tightened *nioiguchi* and frequent *ko-choji ashi*. The *bosshi* typically enters *midare-komi*, often with asymmetrical treatments between *omote* and *ura*. His forging in *masame-hada* on spear works, with *nie*-laden *suguha* and *hotsure*, follows the long-established convention for older spears and is acknowledged as distinct from his characteristic Osafune manner. His blades frequently display *bo-utsuri* or *midare-utsuri*, and *bo-hi* with *soe-hi* or *kaku-dome* terminations are regularly encountered.
The NBTHK repeatedly characterizes Norimitsu's productions as displaying "good workmanship in both *ji* and *ha*" and as "orthodox and straightforward." His signed, *ubu* examples are valued as material that "conspicuously reveals distinctive features in both the *jihada* and the tempered edge," and his work constitutes, in the Board's assessment, "valuable source material for the study of Bizen smiths of this period." His yari, among the earliest bearing Bunmei-era dates, are commended as "orderly and well made" and recognized as representative spears of the Muromachi period. Across all forms — tachi, katana, tanto, and yari — Norimitsu's oeuvre documents the evolving character of mid-Muromachi Bizen craftsmanship with scholarly precision.
Tsuneie (經家) — Sukesada line · 1429-1462. Jūbun, Jūyō. Tsuneie is transmitted as a swordsmith of the Hatakeda branch within the Osafune school of Bizen Province. Although the *Meikan* and related signature references place the first generation in the mid-Kamakura period around the Shoo era (1288-1293), and examples bearing Oan-era dates of the Nanbokucho period are also recorded, extant works that predate the Oei era are exceedingly rare. Tsuneie stands alongside Iesuke as one of the capable smiths of Oei-Bizen, coming after the foundational masters Morimitsu and Yasumitsu, and his workmanship closely resembles that of Yasumitsu from the same period. Despite being recorded as "Osafune" and transmitted as Hatakeda lineage, the NBTHK observes that there are no grounds — whether in workmanship, the character of the signature, or any other point — by which one could distinguish his production from Osafune work.
Tsuneie's forging characteristically shows *ko-itame-hada* closely worked, with *ji-nie* adhering and *bo-utsuri* clearly standing — hallmarks that plainly display the style of Oei-Bizen. His tempering frequently features *gunome* with opened bases into which *choji* is mixed, often with small *ashi* and *yo*, and a *nioiguchi* that tends toward tightness and is *saeru* — bright and clear. However, the NBTHK further notes that Tsuneie was also adept at producing quiet *suguha* tempers, demonstrating a versatility beyond his more florid work. Both *tachi* and *wakizashi* often show a build that is long in proportion to a standard *mihaba*, with notably thick *kasane*, lending a dignified and imposing presence.
The finest designated examples by Tsuneie are praised as especially well-executed works, excellent in both *jigane* and *hamon*, with a splendidly florid temper of *gunome* and *choji*. The NBTHK consistently commends those pieces in which both *ji* and *ha* are *kenzen* — sound and well-preserved — and in which the workmanship is well ordered. The well-refined *jigane* is described as bright and clear, and the dignified shape with its thick *kasane* is deemed particularly appealing. Tsuneie's position as a representative smith of Oei-era Bizen is firmly established, sharing common traits with his contemporaries while maintaining a workmanship of consistent refinement.
Kiyomitsu (清光) — Kiyomitsu line · 1532-1572. Tokujū, Jūyō. The single piece that anchors Kiyomitsu on record is the katana dated Tenmon twenty-three (1554) and signed at full length "Bizen no Kuni ju Osafune Kiyomitsu,"[[c:1]] raised to Tokubetsu Jūyō in 2014, a broad, deep-curved *uchigatana* that carries no byname yet which the published sources read, from the breadth of its signature, as the work of Gorōzaemon-no-jō (「銘振りよりして、五郎左衛門尉と鑑せられる」)[[c:2]]. He is one of the leading names of *Sue-Bizen*, the term used for the late-Muromachi Osafune workshops and their output collectively, and within that crowded field he is almost wholly knowable: every blade here carries an *ubu* tang with a long signature and a date, most of them clustered in the Tenmon years between 1532 and 1555. The published record lists as many as ten smiths who signed Kiyomitsu in this period, bearing the bynames Gorōzaemon-no-jō, Magouemon-no-jō, Yosozaemon-no-jō, Hikobei and Magobei, and singles out Gorōzaemon-no-jō and Magouemon-no-jō as the two superior hands. It is the first, the Tenmon-dated Gorōzaemon, whose work fills this record, and whom the published sources place at the head of a line that runs on into a second generation of the same byname in the Eiroku and Tenshō years.
His reputation rests first on *suguha*. The published sources name him, with Tadamitsu, as the master of the straight temper among the *Sue-Bizen* smiths (「忠光と並んで直刃の名手」)[[c:3]], and call the wide *suguha* the very signboard of the Kiyomitsu house (「清光家の看板であるところの広直刃」)[[c:4]]. His characteristic blade is a thick, sturdy *uchigatana*, broad in the body with the *kasane* heavy and the *shinogi* high, *saki-zori* standing toward a *chū-kissaki* that extends a little, over which he lays a wide *suguha* mixed with small *gunome* and small *chōji*. Within it the *ashi* and *yō* enter freely, and the abundant *yō* the sources record as his typical tell, with fine *kinsuji* and *sunagashi* running and the *nioiguchi* bright and clear. A robust shape tempered in this manner, with the edge well worked and the *nioiguchi* shining, is what the published sources call the true heart of the smith who excelled at the straight temper (「直刃を得意とする清光の真骨頂」)[[c:5]].
The *jigane* beneath that temper is as much a part of his recognition. He forges a packed *itame* and *ko-itame* with *mokume* mixed in, *ji-nie* applied in fine grain, *chikei* entering, and a faint *utsuri* standing pale over the surface. The published sources distinguish his *jigane* from that of Tadamitsu and of Yosozaemon Sukesada by its tendency to stand a little more, an *itame* in which the *mokume* shows, so that on the run of his blades the *hada* is the slightly more open one of the three. The exception is telling: on his finest pieces, including the Tokubetsu Jūyō katana, the same sources remark that the *jigane* is unusually well packed and refined by contrast with his common work, its quality lifting those blades above the rest. The *bōshi* returns in a small round with a sweep of *hakikake*, and on the straight-tempered blades runs straight to that small round, in places pointing or doubling toward the back.
Against that calm register he forges two showier manners, and the published sources treat them as fully typical of him rather than as departures. The first is a *gunome-midare* whose mark is the *koshi-no-hiraita gunome*, the *gunome* opened at the base, mixed with *ko-chōji* and small *gunome* over a *chū-suguha* base, *ashi* and *yō* well in and *sunagashi* running, which the sources read as bringing him near Yosozaemon-no-jō Sukesada (「与三左衛門尉祐定に近い」)[[c:6]], the other great *Sue-Bizen midare* hand. The second is *hitatsura*: the temper taken high, *chōji-midare* with *gunome* and small *chōji*, *tobiyaki* entering and *muneyaki* running strongly until the whole edge takes a *hitatsura* form, the *nie* laid strongly and *sunagashi* running. Here the published sources name a structural tell: *Sue-Bizen* is generally thick in the *kasane*, but a blade tempered in *hitatsura* is necessarily made thinner (「皆焼を焼いた場合は必ず重ねが薄くなる」)[[c:7]], so the thinned construction itself is the feature to watch, sometimes joined by a *maru-mune* the school occasionally shows. The same flamboyance appears on a *shōbu-zukuri* blade and on a wide *tantō*, the form varying while the hand stays constant.
What sets Gorōzaemon-no-jō apart within *Sue-Bizen* is read through his own work rather than by contrast. His bright wide *suguha* with its abundant *yō* is the manner the sources tie to his name, the calmest of his three registers, while the *koshi-no-hiraita gunome* and the *tobiyaki*-and-*muneyaki hitatsura* extend his range toward Sukesada and toward the showy late-Bizen taste; Tadamitsu shares the *suguha* but not the *hitatsura*, Sukesada the *midare* but not the straight temper held at full breadth. Several of his blades carry order-inscriptions that fix him in time and place, among them one forged below Tatsuno castle in Harima, which the published sources value as documentary evidence of the smith's movements, and one whose patron Masahide was a commander of the Urakami faction. The broad, deeply curved shapes, made for the wars of the period, are themselves part of the reading; the sources note of a wide *moroha-zukuri tantō* that the temper of the warring age shows plainly even in its bearing (「戦国時代の気風が姿にもよくあらわれて」)[[c:8]].
The weight of designation behind his name is steady rather than vast. One of his blades holds the Tokubetsu Jūyō rank and eighteen more are Jūyō, with nothing on record in the highest designated tiers, so his is a record built in the upper-middle reaches of designation rather than at its summit. The *Tōkō Taikan* values him in the middle range of the Osafune masters, and his provenance, where it is recorded, runs through houses of consequence: one katana descends from the Matsudaira house of Shinobu (「忍の松平家伝来」), and another from the swordsmith-scholar Masahide. Genuine signed, dated Gorōzaemon-no-jō blades survive in fair number for a *Sue-Bizen* name, and an *ubu*, signed example in its original form, of the kind the published sources hold up as an outstanding piece of his hand, is among the more attainable of the great late-Bizen smiths for a collector who waits, the Jūyō tier appearing from time to time, the single Tokubetsu Jūyō a landmark when it does.
Katsumitsu (勝光) — Katsumitsu line · 1492-1501. Tokujū, Jūyō. Smith of the Sue-Bizen production era.
Norimitsu (則光) — Sukesada line · 1430-1453. Tokujū, Jūyō. Osafune Norimitsu of the Eikyo to Kyotoku eras is known from four dated works: a tanto of Eikyo 2 (1430), tachi of Eikyo 10 (1438) and Bun'an 2 (1445), and a tachi of Kyotoku 2 (1453) that was designated Juyo Token at the 43rd session and raised to Tokubetsu Juyo the following year. The published sources trace the name back to a first Norimitsu said to have been a pupil of Nagamitsu, whose tanto dated Kagen 3 survives. They record the meikan sequence in full: 「銘鑑では、これを初代とし、二代を延文頃、三代が応永で家助の子とし、四代が永享頃、五代が長禄・寛正頃で、以後室町末期まで名跡の継承があったことを記している」 (the meikan count that smith as the first generation, a second around Enbun, a third in Oei as the son of Iesuke, a fourth around Eikyo, and a fifth around Choroku and Kansho, with the name carried on to the end of the Muromachi period).
Within that sequence the published sources place the present smith as the fourth. They note that works up to the Oei era at the start of the Muromachi period are very few; one paper puts it that the line lapsed and was revived in the Muromachi period[[c:1]]. By contrast, the maker of the Kyotoku tachi is held to be the fourth generation of the meikan, with comparatively many surviving works, and famed alongside Sukemitsu as one of the two pillars of Eikyo Bizen[[c:2]]. The paper on the Bun'an tachi gives his common name: 「この文安の則光はその四代目にあたり、五郎左衛門を名のっている」.
His tachi share a recognisable manner. On the Kyotoku tachi the *ko-itame* is finely forged, with minute *ji-nie*, fine *chikei* and a clear *midare-utsuri*. The hamon is based on *gunome* open at the base, mixed with angular *ko-gunome*, *ko-choji* and pointed elements. *Ashi* and *yo* enter freely, the *nioiguchi* is slightly tight with *ko-nie*, and there are scattered *tobiyaki*. The *boshi* runs in irregular, small and round on the omote and pointed on the ura, with fine *hakikake*. The published sources find the features of Norimitsu well displayed here. They call it a masterpiece among his works, more varied than usual in the rise and fall of the temper and in its *ashi* and *yo*[[c:3]].
The Bun'an tachi shows the same pattern: a *midare-utsuri* in the ji, *gunome* open at the base with a *choji* feeling, *ashi* and *yo*, and a *boshi* that runs in and turns back pointed. Its paper reads this as the inheritance of the Oei Bizen manner, the *nioiguchi* bright and clear[[c:4]]. The Eikyo 10 tachi, long even after shortening, has a flowing *itame* with *mokume* that tends to stand, and a hamon of *gunome* mixed with *choji* and *ko-choji*, deep in *nioi*. The published sources write 「この太刀は姿・作柄にいまなお応永備前の風を保ち、地刃の出来が見事である」 (in shape and workmanship this tachi still keeps the manner of Oei Bizen, and its ji and ha are splendid).
The Eikyo 2 tanto is a different register. It is *hira-zukuri*, without sori and somewhat thick, with Sanskrit characters carved on both faces. Over a well-forged *itame* with *bo-utsuri* runs a *naka-suguha* in *nioi-deki* with a little *ko-nie*. The published sources call it one of his representative works and find in it the features of Osafune work of the period[[c:5]].
The Kyotoku tachi comes with a contemporary black-lacquered tachi koshirae, an iron tachi chain fitting, a silver brocade tachi bag woven with large chrysanthemums on a dark blue field, and a vermilion-lacquered box. The published sources describe the mounting as a valuable example of an archaic military black-lacquered tachi koshirae that carries the Nanbokucho style[[c:6]]. They consider the bag a very rare Japanese silver brocade datable to the Muromachi period.
Sukesada (祐定) — Sukesada line · 1487-1521. Jūyō. Hikobei-no-jo Sukesada is one of three smiths the published sources lift out of the crowded body of Sue-Bizen Osafune masters who signed Sukesada in the late Muromachi, his five designated works all signed katana dated between Meio 7 (1498) and Eisho 14 (1517). Among the many smiths who used the name Sukesada in late-Muromachi Osafune, the NBTHK's commentary repeats that those bearing the common-name titles Yosozaemon-no-jo, Genbei-no-jo, and this Hikobei-no-jo are 「とりわけ技術が高い」[[c:1]], the most accomplished of the line even within the same period and school. The published sources transmit a further fact that fixes his place in the family: he was the elder, 「与三左衛門尉祐定の父と伝え」[[c:2]], the father of Yosozaemon-no-jo Sukesada, the most celebrated of all the Sue-Bizen Sukesada. He sits, then, at the head of the most distinguished branch of the last great phase of the Osafune line, the generation that worked the long uchigatana as the tachi fell out of use.
His declared specialty is a calm one. The published sources read his manner as broadly suguha, the register in which his fine pieces are found, his hand summarised as 「作風は概ね直刃で、この手のものに佳作を見る」[[c:3]]. The Eisho 10 katana of 1513 shows that quiet domain at its best. The yakiba is taken deliberately broad on a suguha base, into which gunome and ko-gunome enter, the ashi present and the yo conspicuous, ko-nie clinging along a habuchi that here and there drifts into faint hotsure and a little yubashiri, fine sunagashi running through and long kinsuji striking across the temper. The boshi is tempered deep, shallow and notare-leaning into a pointed cast on the omote, straight to a large maru on the ura, the kaeri brushed down long on both sides. It is a restrained blade carrying a great deal of incident within the line, the kind of finely controlled suguha the published sources name his own.
The other pole of his range is fully native Bizen, and the NBTHK is explicit that he is no less skilled in it: 「本作のような備前本来の乱れ刃もまた上手である」[[c:4]]. Here the keynote is choji mixed with gunome, the valleys of the midare opening at the base into a waist-spread koshi-biraki form, ko-choji and ko-gunome and pointed togariba folded in, the pattern in places building into a double-flower juka and a compound fukushiki midare. The jigane beneath is a tight ko-itame to itame, closely packed and clear, ji-nie attaching, fine chikei entering, and across it a midare-utsuri that runs from faint to fully risen, the speckled reflection the old Bizen steel throws back. On his most exuberant work the nie thickens, kinsuji and sunagashi play through the ha, small bead-like tobiyaki drop into the ji, and the nioiguchi stays bright and clear over the whole. The Meio 7 katana of 1498, the earliest dated of the five, is the apex of this manner, a tall flamboyant midare in which the published sources read the full play of multiple kinds of teeth, juka and fukushiki forms together, and judge it a piece in which 「彦兵衛尉祐定の本領が遺憾無く発揮された」[[c:5]].
The two manners are not separate periods but one working range, and the designated blades favour the flamboyant pole while the commentary keeps naming the suguha as his proper domain. The signature register is consistent and is where a collector reads him first. All five are katana on ubu nakago, a long signature cut on the omote and a date on the ura, several of them in fine chisel run over two columns. The most explicit, the Meio 7 and the Eisho 6 katana, carry the full common name, Bizen no Kuni Osafune Hikobei-no-jo Sukesada saku; the pieces that sign only Osafune Sukesada without the title are appraised as Hikobei-no-jo from the manner of the mei, as the Eisho 14 and Eisho 10 commentaries say outright. One of the Eisho-dated blades drops the jo character to read simply Hikobei Sukesada, a form the published sources note is unusual but occasionally seen. The carvings deepen the picture and recur across the group: paired bo-hi with a companion tsure-hi or soe-hi, run through or stopped in maru-dome, and at the base a religious motif, on different blades a Sanskrit bonji, a Kurikara dragon, or the carved invocation Namu Hachiman Daibosatsu cut in intaglio.
What sets him apart within the Sukesada body is read by his own affirmed traits rather than by contrast. His is the high-quality end of Sue-Bizen production, the ji and ha both bright and clear on his best pieces, the suguha finely grained and the midare disciplined even at its most lively, and the NBTHK calls one Eisho 6 katana, with its Kurikara and Namu Hachiman Daibosatsu carving, a work in which the Sue-Bizen character is well displayed. His relationship to the wider name is genealogical and direct: father of Yosozaemon-no-jo, set by the published sources beside Genbei-no-jo as one of the three masters whose technique stands above the rest of the line. He is distinguished from his more famous son and from the many ordinary Sukesada not by a single eccentric tell but by the evenness of his quality, the breadth of his range from quiet suguha to compound midare, and the care of his carving and signature.
Five of his works have passed Juyo, and all five sit in that one register, none raised to a higher designation, so they form the body of his designated work that can in principle change hands. Fujishiro rates him Jo-jo saku, an upper-grade ranking, and his Toko Taikan valuation places him among the substantial Sue-Bizen names without reaching the top of the school. None of the five carries a recorded line of provenance or a named former owner in the published record, which is in keeping with a working uchigatana smith whose blades were made to be used rather than handed down through a daimyo house. For a private collector he is among the more attainable of the distinguished Osafune masters, a dated and signed Hikobei-no-jo Sukesada coming to market from time to time and offering, in a single blade, both his finely controlled suguha and the bright Bizen midare the published record places at the height of late Osafune work.
Other smiths
Sukesada (祐定) — Sukesada line · 1573-1592. Smith of the Sue-Bizen production era.
Kiyomitsu (清光) — Kiyomitsu line · 1558-1571. The katana dated Genki two (1571) and signed at full length "Bizen no Kuni ju Osafune Magouemon-no-jo Kiyomitsu saku kore"[[c:1]] is the piece the published sources hold up as the measure of this smith, an *uchigatana* whose *jigane* they call extremely fine, the *suguha* broad with small *ashi* and *yo* well in, and which they call not only a masterwork of Kiyomitsu but a typical and representative work of the school in this period (「この時代の同派の典型的且つ代表作」)[[c:2]]. Kiyomitsu is one of the leading names of *Sue-Bizen*, the term used for the late-Muromachi Osafune workshops and their output collectively, and among the many smiths who signed the name the published sources single out two as the superior hands: Gorozaemon-no-jo and Magouemon-no-jo, the latter being the smith whose work fills this record. He bears the byname Magouemon-no-jo and works in the Eiroku and Genki years, between 1558 and 1573, and the published sources note that the byname runs to a second generation, reading this run as that second hand. Every blade here is a signed, dated katana on an *ubu* tang, a body of work as nearly knowable as a *Sue-Bizen* name can be, several of the signatures long enough to carry the Osafune residence in full.
His reputation rests first on *suguha*. The published sources name Magouemon-no-jo, with Gorozaemon-no-jo, as the technically superior of the Kiyomitsu smiths, both of them excelling at the straight temper, and call the wide *suguha* itself the mark of the Kiyomitsu line (「清光一派の特色」). Another entry puts the same judgment plainly: Kiyomitsu also tempers *midare*, but is in general more skilled at *suguha* (「清光は乱刃もあるが直刃が一般に上手である」). His characteristic blade is a sturdy *uchigatana*, the body broad and the *kasane* thick, the *shinogi* high and *saki-zori* standing toward a *chu-kissaki* that extends a little or a large *kissaki*, over which he lays a wide *suguha* mixed with small *gunome* and a *choji*-like wave. Within it the *ashi* and *yo* enter thickly, the *nioiguchi* tight to small *nie* and on his finest blades bright and clear, with fine *sunagashi* running. A robust shape tempered in this manner, the edge well worked and the *nioiguchi* shining, is what the published sources call the true forte of the smith who excelled at the straight temper (「直刃を得意とする清光の本領がよく示されている」)[[c:3]].
The *jigane* beneath that temper is as much a part of his recognition. He forges a packed *itame* and *ko-itame*, *ji-nie* applied, *chikei* entering in fine grain on the better pieces. What sets his *jigane* apart, and the published sources name it expressly, is that where Tadamitsu and Sukesada keep the *hada* close, Kiyomitsu mixes *mokume* into the *itame* so that the *ji* tends to stand, a distinguishing feature the sources call particular to him (「板目に杢が交じって肌立つ鍛えに特色がある」)[[c:4]]. The exception is telling. On his masterworks, including the Genki katana, the same sources remark that the *ko-itame* is unusually free of unevenness and finely packed (「小板目が叢なくつんで」), the refinement of those blades lifting them above his common work. The *boshi* runs straight to a small round with a sweep of *hakikake* on the *suguha* blades, and on the *midare* pieces it turns over in *midare* and points or doubles toward the back, a small round one side and a pointed return the other.
Against that calm register he forges a showier second manner, and the published sources treat it as fully representative of him rather than as a departure. Its mark is the *koshi-no-hiraita gunome*, the *gunome* opened at the base, becoming complex and doubled, mixed with small *gunome* and pointed heads or set against a *notare* bearing square-shouldered heads, the *ashi* and *yo* in, *ko-nie* laid, with *sunagashi* and *kinsuji* running and *muneyaki* and *tobiyaki* entering. The published sources read the opened *gunome* with its small *nie* as resembling that of Yosozaemon-no-jo Sukesada (「与三左衛門尉祐定にも似て」)[[c:5]], the other great *Sue-Bizen midare* hand, and call these blades his representative *midare* work (「孫右衛門尉清光の互の目乱れの代表作」)[[c:6]], noting that like the other late-Bizen smiths his range is wide and extends to *o-notare*, *hitatsura* and full *gunome-midare*. The shapes themselves are part of the reading: the sources observe that by this period the blades grow long and the tang lengthens to suit two-handed use (「寸法も長くなり、茎も両手で使用するに適した」)[[c:7]], the broad body and large *kissaki* of the latest pieces marking the very end of the Muromachi age.
What sets Magouemon-no-jo apart within *Sue-Bizen* is read through his own work rather than by contrast. His wide *suguha* taking in small *gunome*, the *ashi* and *yo* coming in thickly, is the manner the sources tie to his name, the calmest of his registers, while the *koshi-no-hiraita gunome* with its *muneyaki* and *tobiyaki* extends his range toward Sukesada and toward the showy late-Bizen taste, the published sources calling one of these the representative straight-tempered work of his hand (「孫右衛門尉清光の直刃の代表作」)[[c:8]]. Tadamitsu and Sukesada share the *suguha*, but the standing *itame* with *mokume* is the tell that tells his straight temper from theirs. Several of his blades carry order-inscriptions that fix him in time and place, the most consequential naming the Bizen *shugodai* Urakami Munekage, one made as a treasured possession for him and another forged at Tenjinyama castle for his line; the published sources identify this patron with the deputy-governor of the province (「この紀宗景とは備前の守護代浦上宗景のことであろう」)[[c:9]] and value the inscriptions as evidence of the smith's standing.
The weight of designation behind his name is steady rather than vast. Ten of his blades hold the Jūyō rank, and an eleventh, a katana dated Genki 2, is recorded in Honma's inventory of the Imperial collection; nothing stands on record in the Tokubetsu Jūyō or the higher designated tiers, so his is a record built in the upper-middle reaches of designation rather than at its summit, and his designation factor places him well down the long roll of swordsmiths. Provenance is recorded thinly, the surest trace being the Urakami Munekage order-inscriptions carried on the blades themselves rather than a roll of later owners. Genuine signed, dated Magouemon-no-jo blades survive in fair number for a *Sue-Bizen* name, and an *ubu*, signed example in its original form, of the kind the published sources hold up as an outstanding piece of his hand (「清光作の傑作であるばかりでなく」)[[c:10]], is among the more attainable of the great late-Bizen smiths for a collector who waits. The Jūyō tier appears from time to time and a fully signed, dated Eiroku katana with the standing *itame* and the bright *suguha* is a landmark when it does, the smith better met through one such honest, documented blade than sought in any rarer tier he never reached.
Sukesada (祐定) — Sukesada line · 1547-1592. The designated works that survive under the Hikozaemon-no-jo Sukesada signature are ubu and dated, seven katana and one double-edged tanto, the earliest the Tenbun 16 (1547) katana that carries beside its long signature a nine-character kuji-in seal, the auspicious characters Daikichi, and a bonji, and the latest the Tensho 4 (1576) commission made for Wada Izumo no Kami of Harima. The name Sukesada is the great late-Muromachi name of Osafune, carried by a body of Sue-Bizen smiths of whom the most highly regarded bore distinguishing common-name titles: Yosozaemon no Jo, Genbei no Jo, Hikobei no Jo, and the Hikozaemon no Jo whose blades are gathered here. The published sources are candid that Hikozaemon no Jo stands somewhat lower in name than the first two, yet they judge these particular blades especially well made, one of them "a representative masterwork among Sue-Bizen swords"[[c:1]]. His hand is the mature Sue-Bizen katana, and the signature itself runs in three same-signature generations, read off the Meikan as a first in Eisho, a second in Tenbun-Eiroku, and a third in Genki-Tensho.
The distinguishing matter of his work is a single declared division of manner. The published sources state it almost verbatim across the corpus: the work of this period divides broadly into a koshi-biraki gunome-midare that develops into a compound, layered form, and a suguha-cho into which ashi and yo enter[[c:2]]. The first is the flamboyant pole. Over the jigane he tempers a midare whose valleys open at the base, deeply hardened, the gunome building into the doubled fukushiki structure, abundant ashi and yo within it, ko-nie attaching, with sunagashi and kinsuji running through; on the most agitated of these the nioiguchi is bright, while on others it grows subdued. The second is the quiet pole, a suguha-cho or broad suguha carrying ashi and yo well, ko-nie with sunagashi, the nioiguchi tending toward a tightened look, and on one Tensho katana yubashiri and a touch of tobiyaki gather around the monouchi. Most blades fall clearly into one mode or the other, and on several the judges name which.
The jigane is the constant beneath both manners. It is a compact ko-itame, on the broader katana an itame, well forged and tight, with ji-nie attaching; on one blade it tightens so far as to appear muji-like, almost featureless, and on another it loosens into a standing hada (hada-dachi) mixed with mokume and carries muneyaki along the back. The forging is where the judges most often single him out: of the Tenbun 16 katana they write that the kitae is "outstanding"[[c:3]], forged in itame with ji-nie and abundant chikei, presenting overall "a strongly steely character"[[c:4]]. The boshi answers the hamon mode: midare-komi turning ko-maru, sometimes deeply tempered into a yakizume-like tip on the flamboyant blades, and a ko-maru with a long return, pointed, or faintly hakikake on the suguha ones. The sugata is the late-Muromachi katana throughout, a broad shinogi-zukuri with iori-mune, sakizori, and an extended chu-kissaki tending to an o-kissaki, the shinogi at times shaved high.
The generations are read directly off the nakago, since the blades are ubu and each carries a long signature on the omote with a date on the ura. The published sources date a piece, then place it against the three Hikozaemon no Jo of the Meikan: the Tenbun 16 and Tenbun 17 katana as the second generation, the Tensho 1 and Tensho 4 katana and the Tensho 1 tanto as the third. The working range they call broad, taking in koshi-biraki gunome, suguha, and hitatsura alike, and in each they perceive a high level of technique; they say it of the second generation on the Tenbun 17 katana and repeat it of the third on the tanto. The lengthening of the blade and of the nakago across these dates is read as a sign of the age: the tachi had fallen entirely out of use, and in its place the long uchigatana came to be worn and used two-handed with the development of swordsmanship, so the Sue-Bizen dimensions grow accordingly. The tanto, a moroha-zukuri of Tensho 1 designated at the sixty-sixth session, is a little larger than the double-edged tanto of the Bunmei and Eisho years, which the sources read as the colour of the late Muromachi. Over a compact ko-itame with ji-nie fine as dust, fine chikei and a faint utsuri, it carries a broad suguha-toned temper mixed with gunome and ko-gunome, mura-nie in places, fine sunagashi and kinsuji, the nioiguchi bright and clear, and a deep boshi running pointed with a long return. The sources judge it of outstanding workmanship[[c:5]], and it is accompanied by an Edo-period aikuchi koshirae. The two modes and the three generations are orthogonal, the one a matter of manner and the other of date, and a full reading of any blade gives both.
Within his school he belongs to the dense Sue-Bizen Osafune body of the late Muromachi, the last great phase of the long Osafune line. The published sources rank Hikozaemon no Jo among the representative masters of the Sukesada group together with Yosozaemon no Jo, Genbei no Jo, and Hikobei no Jo, the smiths whose works, in their words, are foremost for the number of fine pieces and for especially high technical skill. His own distinction is read not by borrowing a comparison but by his own grounded traits, the two declared modes held on a tight ko-itame with ji-nie and the steely forging the judges praise, the descent kept within the one name rather than carried out to other lines. The Tenbun 16 katana, of which they say swords bearing the same signature are few, they call for that reason a representative work of the second generation.
Fujishiro rates the smith Jo-saku, and his designation record is modest: eight works on record, all at the Juyo level, the higher designation tiers not among them. They are a body of late-koto katana and one tanto held in private and long-recorded hands, and one of recorded whereabouts appears from time to time rather than rarely, a more findable thing than a Kamakura tachi though not on that account common. Provenance survives clearly on one: the Tensho 4 blade was made for Wada Izumo no Kami, a resident of Banshu, its owner inscription reading that it was "to be handed down through the generations of that house"[[c:6]], so that the katana descended through the Wada family as a heritable sword. For a collector the Hikozaemon no Jo Sukesada is the approachable end of a famous name, a dated and signed late-Bizen katana on which the two-mode reading and the generational frame can be worked out in the hand, and on the best of which, as the published sources say of the Tenbun 16 piece, the forging is outstanding.
Harumitsu (春光) — Sukesada line · 1568-1592. Smith of the Sue-Bizen production era.
Munemitsu (宗光) — Sukesada line · 1469-1509. On a tanto dated the eighth month of Chokyo 2 (1488), Osafune Munemitsu forged a thick-kasane hira-zukuri with strong uchizori and a withered fukura, over a refined ko-itame with ji-nie and chikei, and tempered a bright, clear chu-suguha with kinsuji. The published sources say of it that "it is no exaggeration to call it a masterpiece among his works"[[c:1]]. Its maker, titled Sakyo-no-shin, was the second son of Rokurozaemon-no-jo Sukemitsu and the younger brother of Ukyo-no-suke Katsumitsu. The published record counts him among the representative smiths of the late-Muromachi Osafune forges collectively called Sue-Bizen. Where that school is known for a high, flamboyant temper, Munemitsu is known for the straight line.
The published sources state his individuality plainly. Examples exist of the compound gunome typical of Sue-Bizen, but beyond that he holds "an established reputation as a superior maker of suguha"[[c:2]]. His usual blade is the late-Muromachi katate-uchi uchigatana, not greatly extended in length, with sakizori and a short tang made for a one-handed draw. Over it he tempers a bright suguha, by turns slender, medium and broad. A katana dated Eisho 2 (1505) is read as showing his typical style: a broad suguha in which ashi and yo work actively, both ji and ha bright and clear. Beneath its signature a nine-character incantation is cut with the single character Katsu below it, and the published sources leave open whether this marks a joint work with Katsumitsu or simply means victory. Beside Katsumitsu the difference is one of scale. The published record notes that his hamon "is of smaller pattern, showing the manner often seen in Munemitsu"[[c:3]].
His jigane is a closely forged ko-itame with fine ji-nie and chikei, over which a midare-utsuri stands; on the more reserved pieces it appears as a bo-utsuri. A katana dated Bunmei 11 (1479) also carries the ownership inscription of Minamoto Kaga-no-kami Muneyoshi. Of it the published sources note the well-ordered jigane, the standing bo-utsuri and the slender suguha with a tight nioiguchi, which give the blade a somewhat archaic air at first sight. Of a Bunmei 13 wakizashi recorded in Honma's inventory of the Imperial collection they write that, for a Sue-Bizen work, "its utsuri is strong, a piece one is tempted to date a little earlier"[[c:4]]. On the suguha blades the boshi runs straight to a round. On both faces he cuts the devotional carvings of his time, kurikara, bonji, suken and shrine names such as Hachiman Daibosatsu and Marishiten, which the published sources treat as marks of the period and lineage rather than of this smith alone.
He also works in the flamboyant register, best seen on the wide wakizashi of the Eisho years. Over a tightly forged ko-itame with dense, fine ji-nie and a standing midare-utsuri he sets a wide temper of open-waisted gunome mixed with choji and a fukushiki-gunome-like pattern. Ashi and yo enter, small tobiyaki are scattered through it, and sunagashi and kinsuji run, the nioiguchi bright and clear. The boshi enters in midare and turns back long. The published sources call this the typical manner of the Osafune smiths of the period. They also observe that conspicuous choji in the gunome is most common in Katsumitsu among the Sue-Bizen smiths and next in Munemitsu: "choji stands out within the gunome"[[c:5]]. Because his working life was long and joint signatures survive with his nephew Jirozaemon-no-jo Katsumitsu, the published record holds that the name likely ran to a second generation, the Eisho works belonging to the second. It grants that a firm boundary between the two is hard to draw.
The published sources record that joint works of the brothers Katsumitsu and Munemitsu were prized under the name Munekatsu; the blades signed with his elder brother are recorded under Katsumitsu's name. On his own record the joint signatures run to the generations on either side of him. With his nephew Jirozaemon-no-jo Katsumitsu he signed an Eisho 5 wakizashi, and of it the sources write that the dated joint signature makes it "of great documentary value for research"[[c:6]]. A Bunmei 9 tanto signed as the second son of Sukemitsu, carved with the shrine name Tensho Daijingu, is read as "most probably meaning a joint work of father and son"[[c:7]]. On the Bunmei 13 wakizashi he signs Osafune Sakyo-no-shin, which the sources take to show that Osafune had by then passed from a place name into a surname. The published record also preserves the tradition that in Chokyo 2 he went with Katsumitsu to the shogun Ashikaga Yoshihisa's camp in Omi to forge, set up forges across Bizen and Bitchu, and fought under Akamatsu Masanori.
Munemitsu has twelve works on record: ten Juyo Token and two blades recorded in Honma's inventory of the Imperial collection. He has no National Treasure, no Important Cultural Property, no Juyo Bijutsuhin and no Tokubetsu Juyo, and Fujishiro ranks him Jo-jo saku. The variant-lacquer han-dachi koshirae of an Eisho 6 katana, a mid-Edo mounting, descends in the Date house; it was first designated Juyo Koshirae and later designated together with the blade. For a private collector the Juyo blades are the realistic encounter, the dated pieces especially valued for what they show of his long career and of the two-generation question. Signed and dated Munemitsu survive in fair number for a Sue-Bizen name, yet a sound dated example comes to market only from time to time, and a documented joint blade more rarely.
Sukesada (祐定) — Sukesada line · 1596-1615. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1615-1647. Smith of the Sue-Bizen production era.
Tadamitsu (忠光) — Sukesada line · 1502-1521. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1532-1555. Smith of the Sue-Bizen production era.
Harumitsu (治光) — Sukesada line · 1521-1532. Osafune Harumitsu signed his blades 治光 and styled himself Jirobei-no-jo, and the published sources place him by name within a documented Sue-Bizen line: the son of Jirozaemon-no-jo Katsumitsu and the father of Jurozaemon-no-jo Harumitsu, with dated work surviving across the Eisho, Daiei and Kyoroku eras of the early sixteenth century. He belonged to the Osafune workshops in their late-Muromachi phase, the period the trade calls Sue-Bizen, when the smiths of the village worked in a shared idiom and signed with the day and month of their making. His own dated pieces are concrete: a katana of Daiei 5, a slender katana of Daiei 8, a broad katana of Daiei 4, a great naginata of Kyoroku 2, and a moroha-zukuri tanto of Daiei 7 made jointly with his father. Fujishiro rates him at the Jo-saku level.
His recognized hand is the waist-opened gunome of the Sue-Bizen group. Over a wide, strongly saki-zori uchigatana the published sources describe a broadly tempered gunome-midare with its bases opened, the koshi-no-hiraita pattern that gives the row its rhythm, mixed with slightly pointed elements and with faint yo appearing within the ha. On the slender Daiei 4 katana and on the joint tanto that opened pattern breaks further, the temper heads splitting to form the fukushiki midare the sources name as the structure peculiar to the group, with ko-ashi and yo and sunagashi running through. It is a quieter, more legible version of the same midare that the Sukesada masters were carrying to a brilliant pitch in the same decades, and it is the first thing by which his blades are known.
The forging is an itame hada, on the broad katana and the naginata standing in the grain with ji-nie adhering, on the finer blades a ko-itame packed tightly and thoroughly consolidated, mixed at times with ko-mokume. The naginata carries the fullest work of all, its ji-nie thick and chikei entering, the large gunome-midare richly covered with nie so that yubashiri and tobiyaki appear, sunagashi gathers in places, kinsuji enters and the mune is tempered. The boshi follows the temper: a midare-komi turning back, on the broad katana deeply with a shimaba at the point and an ichimai-like return, on the tanto in ko-maru, on the naginata with a pointed tendency. There is no utsuri in his work, and the kantei rests instead on the opened gunome, the tightly forged steel and the nie that gathers most strongly on his fullest blades.
The published sources draw more than one face within this single hand. On the broad Daiei 5 katana they read the koshi-opened gunome as abundant in variation and, with the blade's good preservation, call it 「同作中の出色の一口」[[c:1]], an especially outstanding example among the smith's works. On the slender Daiei 4 katana they find the temper of a smaller pattern than is typical for him and note that it 「応永備前風が遺存」[[c:2]], preserving something of the older Oei-Bizen manner, so that the slim, tachi-like sugata reaches back a century into the Bizen past. The Daiei 8 katana shows yet another facet, a broad suguha in which yo are engaged, its ko-itame strongly felt, which the sources call 「地刃健全な治光の佳作」[[c:3]], a fine work of Harumitsu sound in both ji and ha. The naginata of Kyoroku 2 carries his boldest intention, and the sources observe that he also made katana of broad width and emphatically flamboyant temper, so that the two together let one glimpse the aim behind his style.
Harumitsu is best understood beside his father. The joint tanto's commentary counts Katsumitsu among the most skillful Sue-Bizen masters alongside Munemitsu and Tadamitsu, and singles him out as the smith who 「互の目の中に丁子を交えて一段と華やかな出来口」[[c:4]], mixing choji into the gunome for a distinctly more florid and brilliant result than the plainer compound gunome general to the group. Harumitsu works within that broader group manner rather than at his father's most ornate pitch, but the published sources judge the great naginata, in ji and ha alike, a typical example of the output of the school, and they value the father-and-son joint signature as documentary material of its own. The same sources record that large naginata are not infrequently met with in Sue-Bizen, the famous one being the piece Katsumitsu forged with Yosaburozaemon-no-jo Sukesada for Ukita Noie, the lord of Bizen, which sets Harumitsu's own stout naginata within a recognized local type.
Harumitsu's surviving designated record is small and entirely signed, five blades among the Important Sword sessions from the 27th through the 44th, with no National Treasures among them, and a designation factor that places him in the middle ranks of Osafune rather than at its summit. None carries a recorded daimyo provenance, and only one has a holder of record, an institutional collection. The blades range across the wide uchigatana, the slender saki-zori katana that reads as a tachi, the stout great naginata and the moroha-zukuri tanto signed with his father, so that the small body of work shows the full breadth of his forms. He is the kind of named Sue-Bizen hand a collector encounters from time to time rather than rarely, the joint Katsumitsu-Harumitsu tanto the most documentarily interesting of the group and the great naginata the most striking, the published sources reserving for the best of them the phrase 「末備前中傑出の出来映え」[[c:5]], an outstanding level of workmanship among the works of Sue-Bizen.
Harumitsu (春光) — Sukesada line · 1533-1570. Osafune Harumitsu signed his blades 春光 and styled himself Jurozaemon-no-jo, and the published sources place him by name at the head of a crowded field. Several Sue-Bizen smiths bore the name Harumitsu, signing also with the personal names Saemon-no-jo, Gorozaemon-no-jo, Magojuro, Jirozaemon-no-jo, Gozaemon-no-jo and Saemon-shichiro, the name running chronologically from the Bunmei era through the Bunroku era; among them the published sources record that 「その中で十郎左衛門の名が最も知られ」[[c:1]], the Jurozaemon Harumitsu being the best known of all. His own dated work is concrete and tightly clustered in the mid-sixteenth century: a katana of Tenbun 2 (1533), a katana of Tenbun 16 (1547), a katana of Tenbun 24 (1555), and a katana of Eiroku 4 (1561), every one of them an ubu, long-signed blade carrying both the smith's signature and a date inscription. He worked in the Osafune workshops in their late-Muromachi phase, the period the trade calls Sue-Bizen, when the village smiths shared a single idiom and cut the day and month of their making into the tang.
His recognized hand divides into two registers the published sources themselves describe, and the first is the koshi-hiraki gunome-midare that is the hallmark of the group. On the Tenbun 24 katana the temper is a gunome-midare into which the waist-opened gunome enters, the pattern falling overall into a small-scale midare with ashi entering and ko-nie adhering, and on the Tenbun 2 katana that opened gunome widens and gathers force: small gunome are mixed in, tobiyaki appears, the temper is nie-deki and in places the nie collapses into the ji, with kinsuji and sunagashi running slightly. The published sources name this 「末備前特有の腰開きの互の目」[[c:2]], the waist-opened gunome characteristic of Sue-Bizen, and it is the first thing by which his blades are known. The boshi follows the temper into a midare-komi turning back in ko-maru with hakikake on his fullest blade, or is tempered deep in an ichimai-like manner with a long kaeri.
Set against this flamboyant face is a quieter suguha register, and it is here that the jigane shows most clearly. The Eiroku 4 katana is forged in a tightly packed ko-itame, the grain well consolidated, with ji-nie adhering finely and a midare-utsuri standing over the surface, an old Bizen reflection uncommon on a Sue-Bizen blade; its temper is a chu-suguha with gunome tempered around the koshi, ko-ashi entering and the nioiguchi tight. The Tenbun 16 katana carries a wide suguha-cho with a slight admixture of small gunome, ko-ashi and yo appearing within the edge, over an itame well kneaded with a moist look and thick ji-nie. Across both registers the forging is the constant: a well-worked itame, at times the tighter ko-itame, with ji-nie throughout and chikei entering on the Tenbun 2 blade. The boshi in this quieter manner runs deep and straight and turns in ko-maru with a long kaeri.
The two registers are not phases of a career so much as two manners the same smith kept in hand across the same two decades, the dated blades running back and forth between them. The published sources read the Tenbun 24 katana as 「十郎左衛門尉春光の代表作」[[c:3]], a representative work of the smith, its forging a well-packed itame with ji-nie adhering. They count the Tenbun 2 katana, its waist-opened gunome-midare full and its workmanship good overall, among 「春光の傑作の部類の一口」[[c:4]], the masterwork class of his production. Of the Tenbun 16 katana, the calmer of the suguha pieces, they single out the forging in particular, recording that 「とくに鍛えの優れた点が特筆される」[[c:5]], that its especially superior forging is what is most worthy of note. The shorter Eiroku 4 blade, compact in its proportions, they read as of comparatively good workmanship among the smith's works in both jigane and hamon.
Harumitsu is best understood within the Sue-Bizen succession rather than against it. The published sources for the line record the Jurozaemon Harumitsu as the son of Jirobei-no-jo Harumitsu, himself the son of Jirozaemon-no-jo Katsumitsu, placing him within the principal Osafune descent alongside the Sukesada and Kiyomitsu houses that carried the village through the sixteenth century. He works the koshi-hiraki gunome the sources call the group's characteristic temper, the small gunome mixed into both his midare and his suguha giving the finely-broken, small-scale pattern that distinguishes the late hand from the broad choji of the older Osafune mainstream. What lifts his designated blades above the routine Sue-Bizen production is the forging: the well-kneaded itame with ji-nie adhering thickly, the quality the sources reserve their praise for, and on the Eiroku 4 katana the survival of an old Bizen midare-utsuri that the late group only rarely kept.
Harumitsu's surviving designated record is small and entirely signed, four katana among the Important Sword sessions from the 15th through the 37th, with no National Treasures or Important Cultural Properties among them and none yet raised to Tokubetsu Juyo. All four carry long signatures and date inscriptions across the Tenbun and Eiroku eras, so that the small body of work is unusually legible: every blade dated, every one ubu, the smith's hand readable across a quarter-century. One provenance of note is recorded, the Tenbun 16 katana having been 「海軍元帥東郷平八郎の遺愛の一口」[[c:6]], a cherished possession of Navy Marshal Togo Heihachiro, the victor of Tsushima. He is the kind of named Sue-Bizen master a collector encounters from time to time rather than rarely, the dated and signed katana the documentary heart of his work; the fullest of them, with the waist-opened gunome-midare full and the forging worked to the level the published sources call the masterwork class, is a blade of comparatively good standing among the late Osafune hands, and one comes to market only now and then, with patience.
Sukemitsu (祐光) — Sukesada line · 1429-1462. A tachi signed Bishū Osafune Sukemitsu and dated the eighth month of Eikyō 9 (1437) is the earliest dated work of this Osafune smith, and the published sources call it an ubu, signed tachi in the manner known as Oei-Bizen, "an imposing work"[[c:1]]. His dated blades continue through Kakitsu, Bun'an, Hōtoku, Kōshō and Kanshō, and a wakizashi of Bunmei 5 (1473) carries the name further. The Meikan lists seven smiths signing Sukemitsu, and the NBTHK takes this one, judging from his dates, as the first among them. On several blades he adds the common-name title Rokurōzaemon no Jō, and those pieces identify him as the father of the brothers Ukyō no Suke Katsumitsu and Sakyō no Jō Munemitsu. The proof is a Munemitsu tanto dated Bunmei 9 signed "Osafune Sukemitsu's second son, Sakyō no Jō Munemitsu"[[c:2]], a blade the published sources say shows well the transition from Oei-Bizen into Sue-Bizen.
His characteristic temper is a gunome that opens wide at the waist, the *koshi no hiraita gunome*, mixed with a little *chōji*, nioi-dominant with ko-nie, with fine *kinsuji* and *sunagashi* running within and a bright nioiguchi. On the Eikyō tachi it is mixed with pointed elements; on a Bun'an 5 tachi it carries pointed and angular teeth and in places recalls *shima-ba*. The published sources describe that Bun'an tachi as full in its contours and healthy, a fine piece that "fully displays the height of his skill"[[c:3]]. It carries on the *ura* a gold-inlaid cutting-test inscription of Manji 1 by the tester Yamano Kaemon no Jō Nagahisa.
The jigane is an *itame* mixed with *mokume*, at times flowing or standing, with ji-nie and well-entered *chikei*, and over it a *bō-utsuri* stands, faint on some blades and clear on others. The bōshi runs in a *midare-komi* to a *ko-maru*, or runs straight and points as it turns. A Bun'an 6 tanto with slight *uchizori* shows the whole manner on a small scale: a standing *itame* with *mokume*, thick ji-nie, *chikei* and *bō-utsuri*, under a waist-open gunome and gunome-notare with abundant ashi and a little *yubashiri*. The published sources call it a superb piece "showing Sukemitsu's typical manner, its merits displayed throughout"[[c:4]]. It is incised with the deity name Ichinomiya Daimyōjin.
The published sources read his dated work as a single hand crossing from Oei-Bizen into Sue-Bizen. Of a Kakitsu 3 wakizashi they write that the construction and the ji and ha still show an Oei-Bizen flavour, but that "the smaller amplitude of the midare and the inconspicuous chōji show that the date has descended"[[c:5]]. A Kōshō 3 tachi keeps the high *koshizori* of a tachi with a waist-open gunome mixed with chōji, while a Kanshō 3 katana, signed in full with the Rokurōzaemon title and fitted with a brocade-wrapped *handachi* mounting, has a *suguha*-toned temper with gunome ashi and a tightening nioiguchi above. Of it the published sources write that "works with this signature are very few, its carving fine, and it is well made as Sue-Bizen"[[c:6]]. His carving is notable throughout: *kurikara*, bonji and sutra text, twin grooves, and sacred names.
He also tempered a *chū-suguha*. A wakizashi of Hōtoku 3 is inscribed on the *ura* as made at Takehara in Settsu, a record of the period when Bizen smiths moved to work in other provinces, as Katsumitsu did in Bitchū, Kojima, Kyoto and Ōmi. The published sources call it "not only good material for the study of the Sue-Bizen smiths but a fine work in *chū-suguha*"[[c:7]]. The Bunmei 5 wakizashi, recorded in Honma's inventory of the Imperial collection, is of the same quiet kind: an *itame* flowing slightly and standing, with a whitish *bō-utsuri*, under a *chū-suguha* with a slight notare and ko-nie, carved with bonji and a *sankoken* over twin grooves and inscribed with the deity name Tenshō Daijingū. Honma gives the Meikan's scheme of five generations of the name but adds that "whether this division is correct must await further study"[[c:8]]. He finds the smiths of the name "skilled in both suguha and midare"[[c:9]], and calls the Tenshō Daijingū inscription "worth noting together with the Ise faith"[[c:10]].
For the collector, Sukemitsu's record is seven blades designated Jūyō, every one signed and dated on an ubu tang, with no blade in the higher tiers. No provenance is recorded for them. The published sources stress how few works carry his full Rokurōzaemon signature, and a dated, carved blade from the head of the family that led Osafune into the late Muromachi appears only from time to time; it is valued as a document of the passage from Oei-Bizen to Sue-Bizen.
Yukimitsu (幸光) — Sukesada line · 1573-1592. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1532-1555. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1661-1704. Smith of the Sue-Bizen production era.
Tsuramitsu (貫光) — Sukesada line · 1487-1489. Smith of the Sue-Bizen production era.
Tadamitsu (忠光) — Sukesada line · 1469-1521. A katana dated Entoku 2 records that Bishū Osafune Hikobei Tadamitsu forged it on assignment at Iioka-gō in Mimasaka, and the published sources take it as clear evidence of the smith whom they rank highest among the many who signed this name. The Meikan places a first Tadamitsu in the Shōō era and counts eight generations down to Eiroku and Tenshō. The earliest work the NBTHK has examined is a Jūyō blade dated Jōji 3. The famous Tadamitsu, however, belongs to the late Muromachi, to the Osafune forges called Sue-Bizen, where he stands with Katsumitsu and Munemitsu among the representative smiths. Smiths of the name sign with several common names, Hikobei no Jō, Shuri no Suke, Kurozaemon and Heiemon no Jō among them, and of these the published sources hold Hikobei no Jō, active in Bunmei, Entoku and Meiō, to be the most skilled.
His reputation rests on *suguha*. One commentary calls him "the master of suguha among the Sue-Bizen smiths"[[c:1]], another says that "within Sue-Bizen as a whole he is established as skilled in suguha"[[c:2]]. On a typical katana without a personal name, which they read as Hikobei's work, they write that "the jigane is exceptionally clean, and the *chū-suguha* is well made"[[c:3]]. The jigane is a tight *ko-itame* with fine ji-nie and *chikei*, and on a Chōkyō 2 wakizashi the commentary calls it extremely good. Over it he tempers a *chū-suguha* or *hiro-suguha* with a bright, tight nioiguchi, ko-nie, small *ashi* and *yō*, with a little *kinsuji* and *sunagashi*. The bōshi runs straight to a *ko-maru*. A Meiō-dated katana in *hiro-suguha* with ko-ashi and yō is called typical and smart in every respect, its ji and ha very healthy.
He worked the Bizen *midareba* as well. The published sources write that although many of his good works are in suguha, "when he tempers a midareba he is no less skilled than Katsumitsu and Munemitsu"[[c:4]]. On a katana of high curvature they note that "the original Bizen midareba is also his forte"[[c:5]]. There the *itame* carries a *midare-utsuri* and the temper is an open-waisted gunome deep in nie, with a bright nioiguchi. Elsewhere the gunome is mixed with *chōji* and small gunome, ashi and yō entering freely. One katana in the Sengoku shape is judged close in feeling to Oei-Bizen.
His blades are the field swords of the age. A katana under two shaku, with strong *sakizori* and a tang short for the blade, is explained as a form made "entirely to suit the one-handed draw-cut"[[c:6]]. On both faces the Sue-Bizen devotional carvings appear, a grass *kurikara*, bonji and the deity name Hachiman Daibosatsu. The published sources take these as "the work of a specialist carver attached to the Osafune group"[[c:7]]. One katana is inscribed with its price, *dai senbiki*, and the commentary works it out as two hundred and fifty thousand coins, noting that "a thousand *hiki* was a considerable price for the time"[[c:8]]. A *naginata-naoshi* carries a gold-inlaid cutting-test inscription by Yamano Nagahisa.
Spears and joint works complete the record. The published sources observe that fine spears of the Kotō period are few, and that "among Bizen work comparatively good pieces are seen from Norimitsu and Tadamitsu"[[c:9]]; several of his yari and *ōmi-yari* are designated. A katana signed jointly by Hikobei and Hikosaburō is called "a typical and representative work of Sue-Bizen"[[c:10]]. Another, made with Kurozaemon, is noted because "a joint work by two smiths both signing Tadamitsu is of interest"[[c:11]]. Three signed tanto dated Bunmei 10, Bunmei 12 and Meiō 8 are recorded in Honma's inventory of the Imperial collection: a narrow *suguha* on a *takenoko-zori* tanto with a *maru-mune*, a short *moroha-zukuri* in gunome, and a thick tanto in gunome-midare with a grass *kurikara*. Honma holds the three to be by one hand, "skilled in both suguha and midare"[[c:12]]. He adds that the two-edged form belongs to the mid-Muromachi and later and "is especially common in Sue-Bizen"[[c:13]].
For the collector, Tadamitsu is graded Jō-jō saku by Fujishiro. His record holds twenty-two blades at Jūyō, katana, wakizashi, tanto and spears, with a Jūyō Bijutsuhin katana of Entoku 3 certified in 1948 to Ide Tokuichi; nearly all are signed and many dated. Recorded provenance is slight, though one Chōkyō 2 katana names its orderer, Watanabe Shinzaemon. Of the Sue-Bizen names his is among those met more often, and a dated Hikobei Tadamitsu in his clean *suguha* is a realistic though not common encounter for a collector of late Bizen.
Arimitsu (在光) — Sukesada line · 1504-1526. Arimitsu, whose name is read Zaikō, is one of the group of Sue-Bizen smiths of Bizen Osafune, and his four designated katana carry dates running from Eishō 3 (1506) through Eishō 9 and Eishō 17 to Daiei 6 (1526), at the height of the late Muromachi period. The reference compendia enumerate six smiths who signed with this name. Among them the representative hand is the Arimitsu who received the court title Izumo no Kami in Eishō 1 (1504), the same year, the published sources note, in which Izumi no Kami Kaneyuki of Seki in Mino received his own title; and they add that among the Osafune smiths whose names carry the character *mitsu*, examples bearing such a conferred title are 「受領名のある光の作品は頗る少ない」[[c:1]], exceedingly few. He works in the great Osafune of the sixteenth century, the workshop that carried the name forward alongside the Katsumitsu and Sukesada lines, and the published commentary holds that his work 「応永備前の作風を継承」[[c:2]], inherits the style of Ōei-period Bizen, the manner of Morimitsu, Yasumitsu and Moromitsu before him.
What most distinguishes his hand is a *gunome* that opens at the hips, the *koshi-biraki* *gunome*, and it is the base on which every one of his blades is read, whether the published sources write it *koshi-biraki*, *koshi no hiraita* or *koshi no biraita*. Into that line he sets *chōji*, conspicuous enough that the judges single out one katana as a piece which, within the Sue-Bizen tradition, 「末備前の中でも丁子の目立った作風を示しており、出来がよい」[[c:3]], displays a style in which the *chōji* is especially prominent and the workmanship good. With the *chōji* run *ko-gunome*, pointed *togariba* and angular forms, and in place after place the temper doubles upon itself into a compound, *fukushiki* *midare*, a busy and varied edge rather than a calm one. *Ashi* and *yō* enter it well, the *nioiguchi* is dominant and accompanied by small *nie*, and fine *sunagashi* runs through, with partial *kinsuji* and, on the boldest piece, *yubashiri* and small *tobiyaki* breaking out above the line. The *bōshi* follows the irregular temper up, entering in *midare-komi* and turning back with a pointed tendency or in a *ko-maru*, at times with *hakikake*.
The *jigane* beneath that edge is the quiet evidence of his Osafune descent. It is a *ko-itame*, tightly forged and mixed with *ko-mokume*, on which fine *ji-nie* gathers in a fine mist and delicate *chikei* enter; on the broadest, most worked katana the grain stands a little and flows toward the edge, while on the most refined it stays close and still. An *utsuri* stands on all four blades. On the Eishō 3 katana the published sources say simply that it stands, on the Eishō 17 and Daiei 6 katana it is faint, and only on the Eishō 9 katana does it become a clear *midare-utsuri* rising vividly in the *ji*. The shape is the late-Muromachi *uchigatana*, what the published sources call 「典型的な室町時代末期の打刀様式」[[c:4]], the typical *uchigatana* form of the period's end: *shinogi-zukuri* with an *iori* or *mitsu-mune*, often wide in body with a thick *kasane* and *funbari*, a deep *sori* with added *sakizori* and a *chū-kissaki*, the proportions compact and the *nakago* short. A *bō-hi* is carved, sometimes terminated in a *maru-dome*, and on the Eishō 9 piece the lower portion of both faces is incised with divine titles, *Hachiman Daibosatsu* on the omote and *Kasuga Daimyōjin* on the ura, a method the commentary notes as not uncommon among Sue-Bizen works.
The whole of his attested record is signed, four long signatures carved in bold, large characters, each blade dated, and this is the documentary value the judges return to. By their dates the four accord with Izumo no Kami Arimitsu, and the Eishō 9 katana is praised expressly for its date inscription as precious reference material. Yet the record is not closed. On the Eishō 17 katana the published sources observe that, while the date fits Izumo no Kami Arimitsu, the signed characters depart from his usual relaxed and individual hand, showing instead a practiced and fluent handling of the chisel reminiscent of the signatures of Jirōzaemon-no-jō Katsumitsu and Yosōzaemon-no-jō Sukesada; and on the Eishō 9 piece they note that, although its date fits him, the signed characters differ in certain points, so that whether it is by the same man is, in their words, 「今後の研究に俟つべき」[[c:5]], a matter to await further research. The name thus sits among the unresolved questions of Sue-Bizen, where many fine hands signed within a few workshops and a single signature cannot always be carried back to one man.
Within that crowded late Osafune his own tells set him apart. The judges do not lead with a borrowed comparison but with his own typical work, 「在光一流の出来口」[[c:6]], the characteristic workmanship of the Zaikō line: the *koshi-biraki* *gunome* with its *chōji* and compound *midare* over a tight *ko-itame* carrying an *utsuri*, the same features by which an unsigned Sue-Bizen blade would be steered toward him. The published sources count him among the Sue-Bizen smiths of notably superior ability, 「秀抜な技倆を示す刀工」[[c:7]], and where comparison arises it is to the contemporaries of his own workshop, Katsumitsu and Sukesada, smiths of the same generation and place rather than distant traditions. His chiselled signatures, divine carvings and dated, compact *uchigatana* shape together place him squarely in the world of early-sixteenth-century Osafune, a maker carrying the Ōei manner into the age of the mass-produced blade while keeping the careful, individual register of a named master.
For the collector Arimitsu is a quiet and uncommon Sue-Bizen name rather than a celebrated one. He has no National Treasures and no Important Cultural Properties; his record stands instead at the Juyo rank, four blades in all, and the published sources stress more than once that extant works by him are comparatively few, calling the best of them careful and accomplished pieces that, 「その技術の高さを遺憾無く示す」[[c:8]], fully demonstrate his high level of technique. None of his recorded blades carries a documented provenance of named owners, and no current holding institution is set down in the record, so the honest account is that his work survives in private hands of largely unrecorded whereabouts, surfacing only seldom. A signed and dated Zaikō katana, papered at Juyo and inheriting the Ōei-Bizen *jigane*, is the kind of late Osafune blade a patient collector may meet from time to time rather than readily, and one met is worth study as much for the documentary weight of its date and signature as for the *chōji*-laden temper that the workshop's connoisseurs prized.
Arimitsu (在光) — Sukesada line · 1532-1555. Smith of the Sue-Bizen production era.
Hidekage (秀景) — Sukesada line · 1449-1452. Smith of the Sue-Bizen production era.
Nagamitsu (永光) — Sukesada line · 1558-1570. Smith of the Sue-Bizen production era.
Nagamitsu (永光) — Sukesada line · 1504-1521. Smith of the Sue-Bizen production era.
Norimitsu (則光) — Sukesada line · 1521-1555. Smith of the Sue-Bizen production era.
Noritsugu (則次) — Sukesada line · 1449-1452. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1532-1573. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1570-1592. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1573-1592. Smith of the Sue-Bizen production era.
Tadamitsu (忠光) — Sukesada line · 1489-1494. This Tadamitsu of Osafune in Bizen is known from a single signed and dated wakizashi, designated Juyo Token at the 15th session in 1967. The omote of the ubu tang bears the signature Bishu Osafune Tadamitsu, and the ura the date Meio 3 (1494), second month. The published sources open with the standing of the name among the late Bizen smiths: Tadamitsu was skilled at tempering *suguha* among the smiths of Sue-Bizen[[c:1]]. They add at once that several smiths worked under the same name in the same period, and that among them those styled Hikobei-no-jo and Shuri-no-suke are the best known: 「時代を同じくして同名数工あり、その中で彦兵衛尉、修理亮の名が高い」. The paper does not say which of these hands made the present blade.
The wakizashi falls just short of two shaku, at 59.1 cm. It is *shinogi-zukuri* with an *iori-mune*, the sori somewhat high and the *chu-kissaki* extended. The *ko-itame* is tightly forged. In the lower part the hamon is a large *notare*, becoming a wide *suguha* toward the upper part. The *nioiguchi* tends to be tight, and *ashi* and *yo* enter freely. The *boshi* runs straight to a *ko-maru* with a long turn-back. The tang is ubu with a *kurijiri*, shallow *katte* file marks and two peg holes.
The published sources summarize the blade in one sentence: at the base a *notare* mixed with *gunome*, toward the point a *suguha*, the turn-back long and deep, and both ji and ha excellent[[c:2]]. The gentle *notare* passing into a straight temper above suits the reputation for *suguha* with which the paper begins.
The blade is accompanied by an *efu-tachi* koshirae in gold *nashiji* scattered with mokko and kikyo crests. The published sources date the mounting to the late Edo period and note that it is well made.
Takamitsu (貴光) — Sukesada line · 1504-1521. Smith of the Sue-Bizen production era.
Toshimitsu (利光) — Sukesada line · 1504-1521. Smith of the Sue-Bizen production era.
Tsunehiro (恒弘) — Sukesada line · 1492-1501. Smith of the Sue-Bizen production era.
Yasumitsu (康光) — Sukesada line · 1441-1449. Smith of the Sue-Bizen production era.
Yoshimitsu (能光) — Sukesada line · 1489-1492. Smith of the Sue-Bizen production era.
Yoshimitsu (賀光) — Sukesada line · 1457-1483. Smith of the Sue-Bizen production era.
Yoshinaga (吉長) — Sukesada line · 1532-1565. Smith of the Sue-Bizen production era.
Yukihisa (幸久) — Sukesada line · 1510-1537. Smith of the Sue-Bizen production era.
Yukikane (行包) — Sukesada line · 1573-1592. Smith of the Sue-Bizen production era.
Yukimitsu (幸光) — Sukesada line · 1504-1521. Smith of the Sue-Bizen production era.
Daian (大安) — Sukesada line · 987-1596. Smith of the Sue-Bizen production era.
Hisatsugu (久次) — Sukesada line · 1469-1487. Smith of the Sue-Bizen production era.
Katsumitsu (勝光) — Katsumitsu line · 1528-1532. Smith of the Sue-Bizen production era.
Sukesada (祐定) — Sukesada line · 1596-1615. Smith of the Sue-Bizen production era.
Suketada (助忠) — Sukesada line · 1469-1487. Smith of the Sue-Bizen production era.
Tadamitsu (忠光) — Sukesada line · 1492-1501. Smith of the Sue-Bizen production era.
Takamitsu (貴光) — Sukesada line · 1464-1489. Smith of the Sue-Bizen production era.
Toshisada (俊貞) — Sukesada line · 987-1596. Smith of the Sue-Bizen production era.
Toyohara (豊原) — Sukesada line · 987-1596. Smith of the Sue-Bizen production era.
Yasuhisa (安久) — Sukesada line · 1573-1592. Smith of the Sue-Bizen production era.
Yasumitsu (泰光) — Sukesada line · 1532-1555. Smith of the Sue-Bizen production era.
Yasunaga (安永) — Sukesada line · 1460-1466. Smith of the Sue-Bizen production era.
Yukimitsu (幸光) — Sukesada line · 1558-1570. Smith of the Sue-Bizen production era.