Phase 1 · The Ise Muramasa School (村正) · 1500 – 1650

5 smiths · 0 Kokuhō · 0 Jūbun · 1 Jūbi · 1 Tokujū · 71 Jūyō

Major smiths

• Muramasa (村正) — Mainline · 1501-1521. Jūbi, Tokujū, Jūyō. Muramasa is the founder of the Sengo line of Ise Kuwana and the smith who set the manner that bears his name, and the published sources fix him firmly to a single point in time. The oldest extant date in the whole line is Bunki 1 (1501), carried by the dated *katana* signed "Seshu Kuwana-ju Uemon-no-jo Fujiwara Muramasa saku" preserved as a Juyo blade of the 40th session; with the full signature giving the residence, the personal name Uemon-no-jo and the smith name, the published commentary calls it "of high documentary value for research on Muramasa" (同工研究上の資料価値も高い). From that fixed point the prevailing scheme reads the Bunki pieces as the first generation, the Tenbun as the second, the Tensho as the third. Against this dated record the institution sets aside the famous legend: Muramasa, it writes, "was popularly transmitted as a pupil of Masamune, but this is unfounded" (俗に正宗の弟子と伝えられたが不当), a smith whose line begins instead "near the close of the Muromachi period" (室町末期近くにはじまる刀工). His manner shares common features with Mino, Shimada and Sue-Soshu, and resembles Heianjo Nagayoshi above all, so closely that the sources raise the view the two stood in a teacher-pupil relation: "it is especially close to that of Heianjo Nagayoshi" (平安城長吉とは特に似る). The feature the published commentary names again and again as his own is the symmetry of his temper. "The characteristic of his manner," one description states, "is that the *hamon* on *omote* and *ura* match, and the valleys of the *midare* press in toward the edge" (彼の作風の特色は表裏の刃文が揃い、乱の谷が刃先にせまることである). The mirror-image alignment of front and back is the Muramasa hallmark, and the sources return to it on blade after blade: a wakizashi is called typical because "the *hatori* on both front and back is precisely matched, clearly demonstrating a characteristic feature of Muramasa." Over a body usually wide, often short with deep *sori* and *sakizori*, or a *hira-zukuri* *sun-nobi* wakizashi, he fires a *notare*-based *midare* mixed with *gunome* and large *gunome*, *ashi* entering, the *nioiguchi* deep and thick *ko-nie* adhering, with *kinsuji* and *sunagashi* along the edge. Box-shaped elements appear among the *midare*, and the valleys drive down sharply toward the *ha*. The *boshi* runs straight to a small round point or enters the *midare* and sweeps; on the bolder pieces the temper carries down into *muneyaki*. The forging is *itame* that tightens then stands somewhat, with flowing grain mixed in and *ji-nie*; the published sources call it *itame* tending toward *hada-dachi*, frequent among works of the Sengo line, sometimes a *masame* tendency, the steel at times slightly blackish with a *shirake* cast. On the finest pieces the *jigane* is well refined and the *nioiguchi* bright, the *ji-nie* thick and *chikei* abundant. His general run of work, by contrast, is described more plainly, the *nioiguchi* "tight and subdued, with *mura-nie* commonly forming" (匂口は締りごころで沈み, 叢沸のつくのが一般である). What he is not is a *hitatsura* smith. Even his most flamboyant wakizashi, with conspicuous *muneyaki*, is described only as "presenting an appearance akin to *hitatsura*" rather than the full *tobiyaki*-strewn fields of the Nanbokucho Soshu hands; the *muneyaki* and the boxed *midare* are his, but the all-over temper is not, and this absence is itself a tell that separates him from the Hiromitsu-Akihiro manner the legend invoked. The founder's hand divides between two registers of signature and one devotional group. The full long signature, "Seshu Kuwana-ju Uemon-no-jo Fujiwara Muramasa saku," carries the dated Bunki blades and is read as the first generation; the bare two-character "Muramasa" is undated, its generation read from the chiselling and workmanship. On the dated Bunki 1 *katana* the temper is a *notare* with *gunome* worked in a *nioi*-dominant manner, carrying a tendency toward *nijuba*, which the published sources say differs somewhat in feeling from the work attributed to the second generation. Distinct from these is a group marked by Nichiren devotion. On the Juyo Bijutsuhin *katana* dated Eisho 10 (1513) the temper forms *hakomidare* low in the blade and runs up to *suguha*, *omote* and *ura* matched, with the Lotus Sutra title *Myoho-renge-kyo* cut on the blade itself; another wakizashi carries *bonji* with lotus, *ken* and an incised Hachiman Daibosatsu in superimposed relief. The generational boundary in these later-dated pieces is not yet firmly settled: the published commentary repeatedly notes that the divisions among the generations have not yet been firmly established, so the Eisho and Tenbun assignments are read with caution. Where he stands among his neighbours the sources draw by his own traits rather than by borrowed comparison. His manner shares common features with Mino, Shimada and Sue-Soshu; it is nearest Heianjo Nagayoshi; and the matched temper with the down-pressing *midare* valleys is the thread that runs through the whole line and marks it off. His boldest work reaches higher still. On the Tokubetsu Juyo *katana* of the 16th session the temper is exceptionally wide, *notare* with large *gunome*, the *nioi* extremely deep and thick *ko-nie* adhering, the *boshi* deeply tempered to an *ichimai* appearance, and the judges read its model as the old master Go: it "may be thought to have taken as its model the manner of the old Go" (蓋し古作の江に倣ったものかと想われる). They call it a masterpiece of the first generation, one that "in this work in particular gives the impression of surpassing even the second generation" (二代村正をも上回る感があり). The line continued under the same name through the second generation of the Tenbun years, held the most skilled and most prolific, and the third of the Tensho years, and from the school issued the pupils Masashige and Masazane. Its end was political rather than artistic: by the early modern period the name "came to be shunned by the Tokugawa house, and so the name could no longer be carried on" (その名跡は絶えている). Muramasa is *Sai-jo saku* in Fujishiro's grading and rates 800 in the Toko Taikan, the representative swordsmith of late-Muromachi Ise. His Nichiren faith is read straight off the iron: because there are blades on which he "cut the title *Namu-Myoho-renge-kyo*" (南無妙法蓮華経と題目を切りつけたもの) he is taken for a believer of the sect, and the published commentary ties this to the region, noting that "in the Ise district of that time devotion to the sect was by no means uncommon" (当時伊勢地方に於ても、同宗の信仰が少くない). The unsigned Juyo *katana* of the 12th session, whose Muramasa signature was shaved away, is read by the published commentary as the work of a Nichiren believer forged for one such cleric. On record stand fourteen blades across the Tokubetsu Juyo and Juyo tiers, one Tokubetsu Juyo and thirteen Juyo, together with the Juyo Bijutsuhin Lotus Sutra *katana*; that blade bears "Nabenobu" in silver inlay on the *nakago* *mune* and is held to have been owned by Nabeshima Shinano-no-kami Katsushige, recorded at certification in the Nabeshima house. A first-generation wakizashi survives "transmitted as a personal possession of Oda Nobunaga" (織田信長の指料と伝え), its *aikuchi* mounting bearing the Oda *mokko* crest in *maki-e*. None of the founder's blades carries the highest patrimonial designations, so none is locked permanently out of private hands; what survives sits almost wholly in the Tokubetsu Juyo and Juyo tiers, held more often than traded. A first-generation Muramasa of secure date and matched temper is a landmark when it appears, and it appears only from time to time.
• Muramasa (村正) — Mainline · 1521-1528. Jūyō. The oldest extant dated work of the name is of Bunki 1 (1501), signed Uemon-no-jo Muramasa (右衛門尉村正); from that anchor the published sources set the scheme of the name. Muramasa, the NBTHK writes, was the representative swordsmith of Ise Province in the late Muromachi period, resident at Kuwana, and the accepted reading recurs across the designation records: "the common view takes Bunki as the first generation, Tenbun as the second and Tensho as the third, and among them the one held to be the second is the most skilled, his works survive in the greatest number, and his signature characters are moreover fluent and skillful" (最も技術が優れ). Treated here is that second master, the Tenbun-era Muramasa, forty-one designated works on record; of one katana the judges write that "the Muramasa most widely known to the world as the finest of the line is this second generation" (最も上手で世に知られている村正はこれである). The old tale that he studied under Masamune the same sources reject as an unfounded tradition (不当); one text adds that no firm division of the generations is settled, and the older commentary counts Eisho together with Tenbun in the second master's span. First among his marks the sources place the matched temper. "The point at which the hamon of the omote and the ura align conspicuously is the characteristic of Muramasa" (表裏の刃文が目立って揃うところが村正の特色であり), one note states, "and the box-shaped hamon, and the point that the valleys of the midare come close to the cutting edge, are likewise things to see in this smith" (箱がかった刃文や、乱れの谷が刃先に近くなる点も同工の見どころである). His standard hamon is a midare of *gunome* and *notare* mixed with box-shaped elements, compound (*fukushiki*) *gunome*, pointed *togariba* and *yamagata* figures; the heads of the midare split, and the valleys press down toward the edge. The *nioiguchi* tightens, the *ko-nie* patchy, in *mura*, at times with a subdued cast; *sunagashi* runs frequently. The *boshi* is *midare-komi* or *sugu* with *ko-maru*, often swept with *hakikake* and pointed in feeling, the return deep. The forms that carry it are above all the hira-zukuri *tanto* and *sunnobi* ko-wakizashi with *mitsu-mune*, wide in *mihaba* and extended in length, the *sori* shallow; a smaller compact group has *uchi-zori*, and his *katana* are short, strongly *saki-zori* *uchigatana*. The *jigane* is *itame* mixed with flowing and *masame*-inclined grain, standing somewhat, with *ji-nie*, and often shows the whitish cast the descriptions repeatedly note, at times a faint *shirake-utsuri*. Beneath it sits the nakago: *ubu*, narrowing through its lower half into the fish-belly form the texts call *tanago-bara*, which "becomes especially pronounced from the second generation" (たなご腹も二代から殊に著しくなる), and bearing the large two-character mei cut with a thick chisel (太鏨), whose fluent, forceful strokes are themselves a mark of the second master; rare pieces carry the long signature Seishu Kuwana ju Muramasa saku (勢州桑名住村正作). Forty of the forty-one designated works are signed. The single *mumei* blade is the wakizashi styled Ageha (揚羽), read as a signature rubbed away long ago, with a tradition that it came to Hon'ami Kotoku as his *sashiryo*; one wakizashi keeps its faint two characters as a *soko-mei*, the ura gold inlay a title inscription of Okubo Tadahiro, not an attribution; and one *tanto* bears a later-added gold *tanzaku* reading Mukoku (夢告). Beside this flamboyant rule the corpus records a quiet register, *tanto* in medium or narrow suguha, of which the judges write that "this is the kind that aimed at works of the Rai school and the like, and it succeeds; now and then this occurs in his work" (来派の作などをねらったもので成功しており、間々同作にはこれがある); on *katana* it appears as large *gunome* and box-shaped figures at the base under a suguha-toned upper half, the two *yakiba* deliberately differing. A smaller register leans toward *hitatsura*, *tobiyaki* and temper along the back thickening until the blade reads as *hitatsura* in manner, called rare in his work by one text, a manner seen from time to time by another. There is also a corpus of spears, su-yari, omi-no-yari and the rare katakama-jumonji form, seven of the forty-one; the sources conclude that "he excelled also in the making of spears" (槍の製作にも長じていた); of one large-bodied example they write that it "should assuredly be called a celebrated spear" (蓋し名槍と称すべきである). A *katana* made jointly with Toshitsugu and Toshihiro also survives, Toshitsugu held an Odawara Soshu smith of about Kyoroku, prized by the judges for its documentary value. The record is unusually explicit about the company in which he is judged. "At first sight it can be confused with Sue-Seki works of the Kanesada sort" (一見すると末関の兼定等に紛れる), the notes say, elsewhere naming Kaneshiba; they find a likeness to the Shimada smiths, and of Heianjo Nagayoshi in Kyoto the judgment sharpens to "extremely close" (平安城長吉と酷似する), some relationship between the two being presumed. What parts him from all of these, in the judges' own listing, is the matched omote and ura, the box-shaped figures, the valleys pressing to the edge, the tight nioiguchi with its patchy nie, and the tanago-bara nakago under the thick-chisel mei. Within the school, Masashige and Masazane work in the same manner, and the nakago decides once more: the nakago-mune is cut angular on Muramasa where Masashige rounds it with full flesh. *Hitatsura* remains an occasional flourish over the one matched midare, never the rule of his work. Muramasa is rated Jo-jo saku in Fujishiro's grading; the second generation's designated record is forty-one works, all Juyo Token; the register holds no National Treasures and no Important Cultural Properties, so nothing of his is permanently sealed away. History thinned the signatures on its own. From the Edo period onward, the sources record, "legends circulated that the blades brought calamity upon the Tokugawa house, or that they would curse their owners, and for this reason many were rendered unsigned" (徳川家に祟るとか、持主に祟るなど云う伝説があって、その為に無銘となったものが多い), so that signed katana in particular are comparatively rare today. On the fate of the name the texts divide, some stating that after Tensho "the name lapsed, having met, it may be, the disfavor of the Tokugawa shogunal house" (徳川将軍家の忌避にふれてか名跡が絶えている), others that "the same signature continued in succession into the Shinto era" (同銘が相継ぎ新刀に及んでいる). No museum or shrine holding is recorded against his blades and no denrai roll attaches to them; on the record they have moved among private hands. A second-generation Muramasa, ubu and signed with the thick-chisel two characters over the tanago-bara nakago, comes to market only rarely, and the legend that effaced so many signatures has only added to the call for those that remain.
• Masashige (正重) — Mainline · 1521-1528. Jūyō. Masashige worked in Kuwana, in Ise Province, where the published sources record him together with Masazane as a disciple of the first-generation Muramasa, the founder of the Sengo line: "Masashige, together with Masazane, was a disciple of the first-generation Muramasa." The school reckoning runs from a first generation active around Eisho, the name reaching three generations, and Masashige is filed by tradition within that frame as a pupil of the shodai. He leaves no dated blade, so his place is read from style and the manner of signing, and the published commentary takes those works that fall in the Eisho to Tenbun span as the earliest. His standard work is the late-Muromachi hira-zukuri tanto and ko-wakizashi, wide in mihaba and slightly elongated; the few katana are shinogi-zukuri with a high saki-zori. He is Jo-jo saku in Fujishiro's grading, and unlike the great Kamakura masters whose names survive mostly on suriage attributions, every one of his designated blades carries his signature. His hand is the Sengo manner turned more open and more strongly in nie. The forging is itame mixed with masame and a flowing tendency, and it stands: the published commentary returns, blade after blade, to the observation that as a whole many of his works show a more conspicuously standing grain (hada-dachi) than Muramasa's, and that compared with the master his ji and ha are the stronger in nie. The temper takes a ko-notare base into which gunome, large and bold o-gunome, box-shaped and arrow-nock yahazu teeth are mixed, the patterns on omote and ura tending to align; ashi and yo enter, the nie attaches thickly, and sunagashi runs frequently. Over a ko-notare base the bold o-gunome is markedly his, and it is the bones of his more flamboyant midare. The boshi runs midare-komi to a ko-maru, often swept with hakikake and pointed on one face. He is set apart from his master not by a single trick but by the proportion of these features: the same midare worked larger, the same nie carried further, the same grain allowed to stand. The jigane is where the school is read. Over a standing itame, often mixed with mokume and flowing grain, the ji-nie gathers thickly and chikei enters, so that the surface reads as the more active of the two Sengo hands. The published commentary is consistent that his is the more openly standing grain, writing of the line that "compared with Muramasa his ji and ha are the stronger in nie." The temper is a midareba over a shallow undulating base, bright and clear at its best, with deep nioi and well-adhering nie; kinsuji thread through it and sunagashi sweeps heavily, at times the nie breaking up out of the habuchi. The boshi is the most variable element, frequently tempered deep into an ichimai-like return, midare-komi, the point constricting and turning back in a rounded form, swept long down the mune. Carving is occasional: one wakizashi carries a grass-script kurikara on the omote and bonji with gomabashi and a lotus pedestal on the ura. Within one Sengo manner the published descriptions read his work in two registers. The first is his standard, orderly hand, the hira-zukuri tanto and ko-wakizashi in ko-notare and gunome, which the commentary calls his typical workmanship; of one such tanto, brought to a calm character in small, even ko-nie without roughness or crumbling nie, it writes that it "reveals a creative domain closely akin to that of his master Muramasa." The second is the wild register that the judges plainly prize: yahazu and angular squared-off teeth enter the midare, the nie thicken and break up, sunagashi runs heavily, and tobiyaki with mune-yaki build toward a hitatsura-like effect, the boshi burning deep and thrusting up. Of one such wakizashi the commentary writes that it is finished "as a bold piece rich in rustic spirit," and of another, "open-hearted in feeling and filled with commanding vigor." A tanto that fully exploits this manner is said to "fully demonstrate this smith's true strengths." The mei is a thick-chisel two-character signature, sometimes a three-character Masashige-saku, cut on the omote toward the mune; one tanto reads its signature Kin Masashige. His distinction from Muramasa is the spine of the school's kantei, and the published commentary names it precisely. He shares with the master the distinctive tanago-bara, the fish-belly swelling of the nakago, so that on form alone the two run close; the earliest of his signed katana, the commentary observes, is the oldest in date among the works of the name and "at first glance appears to be a masterwork by Muramasa." The point that parts them is the nakago-mune. Where Muramasa's is cut angular, Masashige's rounds out fleshily, and the judges name this the principal point of appreciation, returning to one phrase across his designations: "whereas Muramasa's nakago-mune is angular, the distinctly rounded, fleshy mune is the point of interest." To the same end the jigane stands more openly and the nie carry further than the master's. He works alongside Masazane in the same mould, the two named together as the famous pupils of the shodai; within that mould the rounded mune, the standing grain and the stronger nie are his. Masashige is among the more attainable of the celebrated names, and his record is honest about why. Twelve of his blades hold the Juyo rank, every one of them signed and ubu, and none has risen to the higher designated tiers; his Toko Taikan valuation sits in the middle of the field. None of the designated blades carries a recorded daimyo provenance, so the school's reputation rather than a chain of famous owners is what is preserved in them. The corpus is geographically scattered, the recorded holders private collectors across Japan and one in the United States, and the swords themselves the usual Sengo tanto and ko-wakizashi, the hira-zukuri sunnobi blade of late Muromachi. Of the twelve, two sit in the tradeable Juyo tier of recorded whereabouts; a signed, ubu Sengo Masashige is therefore not beyond a serious collector's reach, coming to market from time to time and standing as a faithful witness to the school of Muramasa, its rounded mune and its standing, nie-laden steel telling the pupil from the master.
• Masazane (正眞) — Mainline · 1501-1504. Jūyō. Masazane worked in Ise Province in the closing decades of the Muromachi period, and the published sources name him, together with Masashige, a disciple of the first-generation Sengo Muramasa, the founder of the school of Kuwana. The two are filed as the famous students of the shodai, working in the same manner as their master, so that the line of the Sengo descends through them as much as through the Muramasa name itself. Across his designated blades the published commentary returns to the same sentence, "Masazane, together with Masashige, was a disciple of the first-generation Muramasa," and it places his hand close to both: like Muramasa and like his fellow pupil, but separated from Masashige by a single, repeatedly named feature, that his *jihada* tends to close more tightly than the other's. He leaves no dated blade, and his standing is read from style and from the manner of signing; he is graded *Jo saku* in Fujishiro's reckoning, and every one of his recorded blades is signed and *ubu*, an unbroken set of original tangs that is unusual for a smith of his standing. His hand is the Sengo manner held quieter than his fellow pupil's. The temper is built low on a box-shaped *yakiba*, a *hako-gakatta* element concentrated at the *koshimoto* and combined with *gunome*, which rises above into a broad *suguha*-cho carrying *ko-ashi* and *yo*. The single most recognizable feature, the one the school is known by, is that the *hamon* on the *omote* and the *ura* matches to one mirror-image pattern: of a katana that forges exactly this, the published sources write that it "tempers a box-shaped *hamon* with omote and ura aligned, clearly demonstrating the characteristic traits of this group." The *nioiguchi* tends tight and bright, with *ko-nie* gathered in it and *sunagashi* running through the temper. The boshi runs *sugu* into a small round turnback with *hakikake* swept at the point. Where Masashige takes the same Sengo base and opens it out, larger in the *midare* and stronger in the *nie*, Masazane draws it in: the box teeth, the matched faces, the calm *suguha* above are his proportion of the school's shared vocabulary. The *jigane* is where the published commentary parts him from his fellow pupil. The forging is *itame* mixed with *nagare-hada* and a mildly standing tendency, *ji-nie* adhering finely, and on his late-Muromachi *uchigatana* a whitish *shirake-utsuri* rises over the surface. To this the judges return in every designation: his manner accords with Masashige's, but "compared with Masashige, Masazane tends toward a somewhat tighter *jihada*." The phrase is the spine of the Sengo kantei between the two names, and it is consistent across the four blades on record. The temper above this jigane is read as a period characteristic of the late Muromachi, a *midareba* of *gunome* and *ko-notare* at the base giving a *koshiba* impression, the upper half settling to *suguha*-cho; but the published sources note that the pattern, with the matched faces and the valleys of the undulations drawing close to the cutting edge, is "frequently encountered among the Sengo group," and that here the features of smith and lineage are well shown. The brightness of the *nioiguchi* is singled out for notice on the finest of the katana. Within one Sengo manner his work reads in two registers, and the published descriptions draw the line by form. The standard hand is the *shinogi-zukuri* katana of late-Muromachi *uchigatana* stance, somewhat wide in *mihaba* with a pronounced *saki-zori* and *chu-kissaki*, in which the box teeth at the base rise to a broad calm *suguha* with the *omote* and *ura* held in accord, the *nakago* *ubu* under a thick-chisel two- or five-character signature. Beside it stands a bolder register in the *tanto*: *hira-zukuri* and *mitsu-mune*, wide in body and shallow in *sori*, the *itame* standing more openly and the *ji-nie* laid on somewhat thickly, the temper a *gunome-midare* mixed with box elements in which the valleys draw close to the edge, *ashi* enter, *sunagashi* runs vigorously, and *muneyaki* is applied as if relying on the ridge. Of one such *tanto* the judges write that it is "bold and brimming with combative spirit," a powerful piece brought to completion as "an exceptionally fine work by Masazane." The two registers are the same smith at different scales, the calm and the combative drawn from one Sengo vocabulary. His distinction is best read against Masashige, with whom he is always named, rather than against any other school, and the published commentary keeps the comparison narrow and exact. The two share the master's manner and the school's Soshu-and-Mino-tinged hand; what separates them is the close of the steel, Masashige's grain standing more openly while Masazane's draws tighter, and the brightness and order of his calm *suguha* katana set him within the more restrained side of the Sengo workshop. His box-toothed *midare* matched on both faces is the group's tell carried plainly, and where the *tanto* turns bold the same matched logic governs the *gunome*. The line runs upstream to the first Muramasa of Kuwana and outward through Masashige into the later generations of the school, the name and the manner reaching across the Muromachi into the Shinto era under the Sengo banner. Masazane is among the rarer of the Sengo names, and his record is small and honest about itself. Four of his blades hold the Juyo rank, every one of them signed and *ubu*, and none has risen to the higher designated tiers; in Fujishiro's grading he is *Jo saku*. None has passed into a public collection on record, so what survives of provenance is daimyo descent rather than a chain of museum holders: one of his katana came down in the Mizuno house, bestowed by the shogun on Mizuno Echizen no Kami when he took up the post of Kyoto *Shoshidai*, and another in the Tosa Yamauchi family. That Mizuno blade carries the school's strangest signature, cut not as Ise Masazane but as "Yamashiro Province Masazane," and the published sources read the altered province as a deliberate screen, since "the Tokugawa house regarded blades by the Sengo Muramasa of Ise Province as unlucky and thus taboo." The cursed-sword reputation of the Muramasa line followed even Masazane's work into the Edo collections, so that a daimyo received his katana under a borrowed origin. A signed, *ubu* Sengo Masazane is not wholly beyond a serious collector's reach, but with only four on record it comes to notice rarely, a faithful witness to the Muramasa school in its matched faces, its box teeth, and its tightly drawn steel.
• Muramasa (村正) — Mainline · 1573-1592. Jūyō. Muramasa was a swordsmith who resided at Kuwana in Ise Province, representative of that province in the late Muromachi period. Among extant works, the earliest dated example bears the year Bunki 1 (1501), regarded as the first generation; works dated to the Eishō and Tenbun eras are attributed to the second generation, and those of the Tenshō era to the third. Of these, the second generation is consistently identified in NBTHK assessments as "the most skillful among the successive generations," with the greatest number of surviving works and the highest proportion of fine pieces. The popular tradition linking Muramasa to Masamune as a pupil is, as the setsumei plainly state, "an unfounded tradition." Certain stylistic affinities with Heianjō Nagayoshi and Izumi no Kami Kanesada suggest some form of relationship, though its precise nature remains unclear. The lineage is said to have died out after the Tenshō generation, "perhaps because the name became an object of avoidance by the Tokugawa shogunal house." The defining hallmark of Muramasa's workmanship is the conspicuous correspondence of the *hamon* on both *omote* and *ura* -- a matching temper that the NBTHK regards as the principal diagnostic feature. The tempering is characteristically "box-like" (*hako-gakari*), with the valleys of the *midare* pressing close to the cutting edge and a *nioiguchi* that tends toward a tightly drawn appearance (*shimarigokoro*). Within this framework, the range of expression is remarkably broad: the standard mode is *gunome-midare* mixed with *notare*, incorporating compound (*fukushiki*) *gunome*, *togariba*, and *hakoba*-like elements, all in *ko-nie-deki* with *sunagashi* running through the temper. Yet examples in *hitatsura*-like manner -- with *tobiyaki*, *muneyaki*, and vigorous *hakikake* -- are "not infrequently seen," and one piece even "aims at the manner of the Rai school and does so successfully." The *jigane* is typically *itame-hada* tending toward *nagare* with *ji-nie* and a somewhat whitish (*shirake-gokoro*) cast, though the finest works achieve a dense *ko-itame* with notably clear steel. Spears are also "accomplished and not especially few in number," with one monumental *ōmi-yari* of exceptional size praised as having been "forged so adroitly, without conspicuous coarse irregularity" that it would likely be "the outstanding example among works of this type." Across more than fifty years of Juyo deliberations, the evaluative language returns to the same constellation of virtues: both *ji* and *ha* are *kenzen* -- sound and well-preserved -- and the finest examples are those in which the *ji* and *ha* are "notably clear" (*saeru*), the *nioiguchi* is "bright," and the workmanship is "excellent." The second generation in particular is praised for producing "a greater number of pieces of superior workmanship" than the first, and individual blades are singled out as being "especially superior" even within that elevated standard. The breadth of Muramasa's working range, from severe *suguha* to flamboyant *hitatsura*, combined with the unerring bilateral symmetry of the temper and the consistently tight *nioiguchi*, secures his position as the preeminent smith of Ise Province and among the most distinctive voices of the late Muromachi period.