This is a Sunnobi-Tanto blade by Osafune Yasumitsu, a master Bizenden craftsman active around the Oei period in the early Muromachi period. The blade is in very good condition and includes a Shirasaya and Matsushiro-Koshirae. The Shirasaya features a Sayagaki autographed by Fukunaga Suiken Sensei.
mumei · Osafune · Oei (1394-1428) · nagasa 31cm · sori 0.3cm


























Bizen-den · Bizen
17 pieces on the market now
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). Learn more →
| Smith | Era | Designated |
|---|---|---|
| Yasumitsu康光 | 1394-1428 | 49 |
| Morimitsu盛光 | 1394-1428 | 60 |
| Yasumitsu康光 | 1424-1443 | 6 |
| Sanemitsu實光 | 1394-1428 | 4 |
| Koremitsu是光 | 1394-1428 | 1 |
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 siteSwords are non-returnable (blades cannot be re-imported to Japan). Insured shipping; damage/loss claims reported within 5 days of receipt. Cancellation fee 10% before shipment; not possible after shipment.
This is a Sunnobi-Tanto blade by Osafune Yasumitsu, a master Bizenden craftsman active around the Oei period in the early Muromachi period. The blade is in very good condition and includes a Shirasaya and Matsushiro-Koshirae. The Shirasaya features a Sayagaki autographed by Fukunaga Suiken Sensei.
mumei · Osafune · Oei (1394-1428) · nagasa 31cm · sori 0.3cm


























Bizen-den · Bizen
17 pieces on the market now
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). Learn more →
| Smith | Era | Designated |
|---|---|---|
| Yasumitsu康光 | 1394-1428 | 49 |
| Morimitsu盛光 | 1394-1428 | 60 |
| Yasumitsu康光 | 1424-1443 | 6 |
| Sanemitsu實光 | 1394-1428 | 4 |
| Koremitsu是光 | 1394-1428 | 1 |
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 siteSwords are non-returnable (blades cannot be re-imported to Japan). Insured shipping; damage/loss claims reported within 5 days of receipt. Cancellation fee 10% before shipment; not possible after shipment.