Sixty years of war between two courts drove blades long and broad, and Osafune met the demand: Kanemitsu and Chōgi led forges serving the provincial warriors who did the fighting, while Sōshū influence arrived with the armies to create Sōden-Bizen.
This Katana is an o-suriage mumei blade attributed to Osafune Shigezane, active during the late Kamakura period. It features a well-forged ko-itame hada with visible surface grain and a nioi-deki gunome-midare hamon. The blade comes with both a shirasaya and a han-tachi koshirae, and is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
Auction status: live on sword-auction.com.
NihontoWatchmumei · Osafune · Kenmu (1334-1338) ND · nagasa 71.6cm · sori 1.9cm
Osafune (Bizen), Motoshige line · Bizen · around 1327-1358
Fujishiro Jo-jo saku · Tōken Taikan top 10%
2 pieces on the market now
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.
Where Shigezane stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Years he was demonstrably active, proven by signed-and-dated blades
Bizen-den · Bizen
236 pieces on the market now
No single workshop in the history of Japanese swordmaking grew larger or lasted longer than Osafune, the riverside village in Bizen Province whose name became, across three centuries, a byword for the province's mainline. Its de facto founder was Mitsutada (光忠), working at Osafune in the middle Kamakura period; tradition makes him the son of Chikatada, and the genealogies derive his line from the Ko-Bizen Masatsune group already settled in the village. His blades, bold and imposing with a jigane so refined the sources say it can at a glance suggest Kyoto work, were treasured from old as the swords of commanders, and from his hand the school spread immediately: his sons Nagamitsu (長光) and Sanenaga (眞長), his grandson Kagemitsu (景光), and outward through pupils and collaterals until, by the late Kamakura years, Osafune was less a family than an industry. The line is conventionally read as a three-generation spine, Mitsutada founding it, Nagamitsu setting its classical standard, Kagemitsu bringing both temper and forging to their finished form before handing the manner to his pupil Chikakage (近景), whose echo of the master is so close that signed Kagemitsu blades are sometimes read as Chikakage daimei. What binds the membership is a shared steel before any shared temper. The forging is itame mixed with mokume, tightening on the finest blades into a dense ko-itame; fine ji-nie adheres, chikei enter, and over all of it stands the midare-utsuri that anchors even the most Kyoto-like jigane back to Bizen. On that floor the founding generation tempers a flamboyant choji-midare mixed with gunome: Mitsutada's tadpole-headed kawazuko-choji, Nagamitsu's round-topped plump choji, the deep nioi with ko-nie, the bright nioiguchi. From here the school divides by hand and by era. Sanenaga draws the calm pole, a gentle chu-suguha of tightened nioiguchi; Kagemitsu completes the slanting, square-shouldered kataochi-gunome over a suguha base, the family's last great Kamakura invention, carried on by his close kinsman Kagemasa (景政). The Nanbokucho generation then turns toward Soshu-den: Kanemitsu (兼光), fourth master of the mainline, pioneers a broad notare and is read, with Chogi (長義), as the head of Soden-Bizen, the Bizen wing that worked Soshu nie into a jigane that still throws a Bizen utsuri.
Chogi is called the most un-Bizen of Bizen smiths, his ear-shaped mimigata his tell; around him Nagashige (長重), Yoshikage (義景), Tomomitsu (倫光) and Kanenaga (兼長) press the Soshu side by degrees, while Motoshige (元重), of a separate Hatakeda descent, carries an Aoe-tinged squared, slanting ha. Two generations later the Oei revival returns to Kamakura: Yasumitsu (康光) and Morimitsu (盛光), the twin pillars of Oei-Bizen, revive the tachi shape and the choji temper over a wide-waisted koshibiraki-gunome, both finishing in the pointed rosoku-no-shin (candle-wick) boshi that gives the late date away. For the collector the school is a school of discriminations, and to kantei it is to read those fine partitions. The constant midare-utsuri over a bright ko-itame fixes the province; the boshi then sorts the maker, Mitsutada's pointed midare-komi against Nagamitsu's composed ko-maru Sansaku turn, Kagemitsu's contained return, the candle-wick tongue of Oei. Within a single phase the calls turn on a half-step: Nagamitsu's plump crests against Sanenaga's cooler nioiguchi, Kagemasa's freer play against Kagemitsu's tighter order, Nagashige read out of Chogi by a nie that surpasses his brother's. The standing of the best is matched by their patrimony. Mitsutada, Nagamitsu and Kagemitsu each hold National Treasures and stand at the head of Fujishiro's Sai-jo saku; their named blades, the Daihannya Nagamitsu, the Kogaryu Kagemitsu, the O-Kanemitsu, passed through Nobunaga, Ieyasu, Uesugi Kenshin and the great daimyo houses. Because Nagamitsu and the Nanbokucho masters signed and survived in number, Osafune offers what most peerage names cannot, a deep field of Tokubetsu Juyo and Juyo work that a patient collector may still realistically hold. Through every register the same hand declares itself: the bright steel, the vivid reflection, and a temper that runs, across three centuries, as the spine of Bizen. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Mitsutada光忠 | 1238-1239 | 60 |
| Nagamitsu長光 | 1274-1304 | 244 |
| Kagemitsu景光 | 1303-1336 | 143 |
| Kanemitsu兼光 | 1323-1370 | 231 |
| Sanenaga眞長 | 1299-1309 | 64 |
Bizen in the Nanbokuchō period
Sixty years of war between two courts drove blades long and broad, and Osafune met the demand: Kanemitsu and Chōgi led forges serving the provincial warriors who did the fighting, while Sōshū influence arrived with the armies to create Sōden-Bizen.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.
This Katana is an o-suriage mumei blade attributed to Osafune Shigezane, active during the late Kamakura period. It features a well-forged ko-itame hada with visible surface grain and a nioi-deki gunome-midare hamon. The blade comes with both a shirasaya and a han-tachi koshirae, and is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
Auction status: live on sword-auction.com.
NihontoWatchmumei · Osafune · Kenmu (1334-1338) ND · nagasa 71.6cm · sori 1.9cm
Osafune (Bizen), Motoshige line · Bizen · around 1327-1358
Fujishiro Jo-jo saku · Tōken Taikan top 10%
2 pieces on the market now
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.
Where Shigezane stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Years he was demonstrably active, proven by signed-and-dated blades
Bizen-den · Bizen
236 pieces on the market now
No single workshop in the history of Japanese swordmaking grew larger or lasted longer than Osafune, the riverside village in Bizen Province whose name became, across three centuries, a byword for the province's mainline. Its de facto founder was Mitsutada (光忠), working at Osafune in the middle Kamakura period; tradition makes him the son of Chikatada, and the genealogies derive his line from the Ko-Bizen Masatsune group already settled in the village. His blades, bold and imposing with a jigane so refined the sources say it can at a glance suggest Kyoto work, were treasured from old as the swords of commanders, and from his hand the school spread immediately: his sons Nagamitsu (長光) and Sanenaga (眞長), his grandson Kagemitsu (景光), and outward through pupils and collaterals until, by the late Kamakura years, Osafune was less a family than an industry. The line is conventionally read as a three-generation spine, Mitsutada founding it, Nagamitsu setting its classical standard, Kagemitsu bringing both temper and forging to their finished form before handing the manner to his pupil Chikakage (近景), whose echo of the master is so close that signed Kagemitsu blades are sometimes read as Chikakage daimei. What binds the membership is a shared steel before any shared temper. The forging is itame mixed with mokume, tightening on the finest blades into a dense ko-itame; fine ji-nie adheres, chikei enter, and over all of it stands the midare-utsuri that anchors even the most Kyoto-like jigane back to Bizen. On that floor the founding generation tempers a flamboyant choji-midare mixed with gunome: Mitsutada's tadpole-headed kawazuko-choji, Nagamitsu's round-topped plump choji, the deep nioi with ko-nie, the bright nioiguchi. From here the school divides by hand and by era. Sanenaga draws the calm pole, a gentle chu-suguha of tightened nioiguchi; Kagemitsu completes the slanting, square-shouldered kataochi-gunome over a suguha base, the family's last great Kamakura invention, carried on by his close kinsman Kagemasa (景政). The Nanbokucho generation then turns toward Soshu-den: Kanemitsu (兼光), fourth master of the mainline, pioneers a broad notare and is read, with Chogi (長義), as the head of Soden-Bizen, the Bizen wing that worked Soshu nie into a jigane that still throws a Bizen utsuri.
Chogi is called the most un-Bizen of Bizen smiths, his ear-shaped mimigata his tell; around him Nagashige (長重), Yoshikage (義景), Tomomitsu (倫光) and Kanenaga (兼長) press the Soshu side by degrees, while Motoshige (元重), of a separate Hatakeda descent, carries an Aoe-tinged squared, slanting ha. Two generations later the Oei revival returns to Kamakura: Yasumitsu (康光) and Morimitsu (盛光), the twin pillars of Oei-Bizen, revive the tachi shape and the choji temper over a wide-waisted koshibiraki-gunome, both finishing in the pointed rosoku-no-shin (candle-wick) boshi that gives the late date away. For the collector the school is a school of discriminations, and to kantei it is to read those fine partitions. The constant midare-utsuri over a bright ko-itame fixes the province; the boshi then sorts the maker, Mitsutada's pointed midare-komi against Nagamitsu's composed ko-maru Sansaku turn, Kagemitsu's contained return, the candle-wick tongue of Oei. Within a single phase the calls turn on a half-step: Nagamitsu's plump crests against Sanenaga's cooler nioiguchi, Kagemasa's freer play against Kagemitsu's tighter order, Nagashige read out of Chogi by a nie that surpasses his brother's. The standing of the best is matched by their patrimony. Mitsutada, Nagamitsu and Kagemitsu each hold National Treasures and stand at the head of Fujishiro's Sai-jo saku; their named blades, the Daihannya Nagamitsu, the Kogaryu Kagemitsu, the O-Kanemitsu, passed through Nobunaga, Ieyasu, Uesugi Kenshin and the great daimyo houses. Because Nagamitsu and the Nanbokucho masters signed and survived in number, Osafune offers what most peerage names cannot, a deep field of Tokubetsu Juyo and Juyo work that a patient collector may still realistically hold. Through every register the same hand declares itself: the bright steel, the vivid reflection, and a temper that runs, across three centuries, as the spine of Bizen. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Mitsutada光忠 | 1238-1239 | 60 |
| Nagamitsu長光 | 1274-1304 | 244 |
| Kagemitsu景光 | 1303-1336 | 143 |
| Kanemitsu兼光 | 1323-1370 | 231 |
| Sanenaga眞長 | 1299-1309 | 64 |
Bizen in the Nanbokuchō period
Sixty years of war between two courts drove blades long and broad, and Osafune met the demand: Kanemitsu and Chōgi led forges serving the provincial warriors who did the fighting, while Sōshū influence arrived with the armies to create Sōden-Bizen.
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
The NBTHK (Nihon Bijutsu Tōken Hozon Kyōkai, the Society for the Preservation of Japanese Art Swords) is a public-interest incorporated foundation founded in 1948 and supervised by Japan’s Agency for Cultural Affairs (Bunkachō); it is based at the Japanese Sword Museum in Tokyo. Its expert panels physically examine each submitted work (shinsa) and issue a certificate (kanteishō) ranking it by artistic and historical merit. NBTHK papers are the most widely recognized standard of authentication for Japanese swords and fittings.
NBTHK official siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.
