This is a koto katana attributed to Bishu Osafune Morimitsu from the late Muromachi period. The blade features a shinogi-zukuri construction with a ko-itame hada and a notare-gunome hamon with active kinsuji. It comes with a well-preserved Imperial Japanese Navy commissioned officer’s two-handed saber-style koshirae, complete with its original sword knot, and is also accompanied by a shirasaya. Both the blade and the koshirae are in good condition.
mei · Bizen Kozori · Muromachi · nagasa 65.7cm · sori 1.6cm






















Bizen-den · Bizen
21 pieces on the market now
The Kozori (小反り) form a loose body of Bizen smiths who worked at and around Osafune in the closing decades of the Nanbokucho period and on into early Muromachi, and the NBTHK defines them less by descent than by exclusion: they are the late-Osafune hands who fall outside the specific lineages of Kanemitsu, Chogi, Motoshige and the Omiya group, gathered under one name as a convenience. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Hidemitsu秀光 | 1375-1392 | 19 |
| Iesuke家助 | 1394-1428 | 11 |
| Nariie成家 | 1352-1362 | 21 |
| Iemori家守 | 1377-1406 | 15 |
| Moromitsu師光 | 1375-1390 | 7 |
Three-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.
This is a koto katana attributed to Bishu Osafune Morimitsu from the late Muromachi period. The blade features a shinogi-zukuri construction with a ko-itame hada and a notare-gunome hamon with active kinsuji. It comes with a well-preserved Imperial Japanese Navy commissioned officer’s two-handed saber-style koshirae, complete with its original sword knot, and is also accompanied by a shirasaya. Both the blade and the koshirae are in good condition.
mei · Bizen Kozori · Muromachi · nagasa 65.7cm · sori 1.6cm






















Bizen-den · Bizen
21 pieces on the market now
The Kozori (小反り) form a loose body of Bizen smiths who worked at and around Osafune in the closing decades of the Nanbokucho period and on into early Muromachi, and the NBTHK defines them less by descent than by exclusion: they are the late-Osafune hands who fall outside the specific lineages of Kanemitsu, Chogi, Motoshige and the Omiya group, gathered under one name as a convenience. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Hidemitsu秀光 | 1375-1392 | 19 |
| Iesuke家助 | 1394-1428 | 11 |
| Nariie成家 | 1352-1362 | 21 |
| Iemori家守 | 1377-1406 | 15 |
| Moromitsu師光 | 1375-1390 | 7 |
Three-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.