This katana is attributed to Osafune Morishige, a smith active from the late Nanbokucho to the mid-Muromachi period. It features a flowing itame hada mixed with mokume, showing a faint utsuri, and a gunome midare hamon with nioi deki. The blade comes with a black fuemaki-nuri saya uchigatana koshirae with silver nanako-ji fittings.
Certificate reading — 無銘(長船盛重)
mumei · Osafune · Nanbokucho · nagasa 71.6cm · sori 2cm



















Bizen-den · Bizen · around 1394-1428
Tōken Taikan top 26%
2 pieces on the market now
Where Morishige 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
7 pieces on the market now
The Omiya school (大宮) of Bizen traces its name and its blood to Kyoto, not to the Bizen heartland where it eventually settled. The published sources follow the line back to a remote ancestor, Kunimori, who is said to have left Inokuma Omiya in Yamashiro province and moved into Bizen during the Kamakura period, around the Bun'o years. With him the group carried a Yamashiro sensibility into the province of choji, and that transplanted origin remains the key to everything the school later became. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Morikage盛景 | 1356-1390 | 92 |
| Morikage盛景 | 1299-1302 | 5 |
| Tomomori友盛 | 1156-1159 | 0 |
| Tsugumori次盛 | 1338-1342 | 0 |
| Tsugumori次盛 | 1278-1288 | 0 |
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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 siteDomestic: items may be returned within 7 days in original condition for a full refund (buyer covers transport). Overseas orders: no-refunds, no-returns.
This katana is attributed to Osafune Morishige, a smith active from the late Nanbokucho to the mid-Muromachi period. It features a flowing itame hada mixed with mokume, showing a faint utsuri, and a gunome midare hamon with nioi deki. The blade comes with a black fuemaki-nuri saya uchigatana koshirae with silver nanako-ji fittings.
Certificate reading — 無銘(長船盛重)
mumei · Osafune · Nanbokucho · nagasa 71.6cm · sori 2cm



















Bizen-den · Bizen · around 1394-1428
Tōken Taikan top 26%
2 pieces on the market now
Where Morishige 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
7 pieces on the market now
The Omiya school (大宮) of Bizen traces its name and its blood to Kyoto, not to the Bizen heartland where it eventually settled. The published sources follow the line back to a remote ancestor, Kunimori, who is said to have left Inokuma Omiya in Yamashiro province and moved into Bizen during the Kamakura period, around the Bun'o years. With him the group carried a Yamashiro sensibility into the province of choji, and that transplanted origin remains the key to everything the school later became. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Morikage盛景 | 1356-1390 | 92 |
| Morikage盛景 | 1299-1302 | 5 |
| Tomomori友盛 | 1156-1159 | 0 |
| Tsugumori次盛 | 1338-1342 | 0 |
| Tsugumori次盛 | 1278-1288 | 0 |
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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 siteDomestic: items may be returned within 7 days in original condition for a full refund (buyer covers transport). Overseas orders: no-refunds, no-returns.