This is a katana attributed to the Kai Mihara school of the late Muromachi period. The blade measures 70.6cm in length and comes with a koshirae in good condition. It is also accompanied by a shirasaya.
mumei · Mihara · Muromachi · nagasa 70.6cm · sori 1.9cm

















Yamato-den · Bingo
32 pieces on the market now
The Mihara school arose in Bingo Province during the late Kamakura period and maintained continuous production through the end of the Muromachi period. The region's ancient reputation as a center for iron goods—documented as early as Engi 14 (914) in the Seiji Yōryaku—provided the technical foundation for this sustained tradition. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobumori信守 | 987-1596 | 0 |
| Sadakuni貞國 | 1441-1444 | 0 |
| Nobutsugu信次 | 1444-1449 | 0 |
| Nobuie信家 | 1394-1428 | 0 |
| Tomotsugu朝次 | 1394-1428 | 0 |
This work carries older NBTHK “Kichō”-era papers, which the NBTHK no longer issues and now regards as unreliable. To confirm the attribution, submission to an official Japanese examination body (such as the NBTHK or NTHK) for modern certification could be considered.
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 katana attributed to the Kai Mihara school of the late Muromachi period. The blade measures 70.6cm in length and comes with a koshirae in good condition. It is also accompanied by a shirasaya.
mumei · Mihara · Muromachi · nagasa 70.6cm · sori 1.9cm

















Yamato-den · Bingo
32 pieces on the market now
The Mihara school arose in Bingo Province during the late Kamakura period and maintained continuous production through the end of the Muromachi period. The region's ancient reputation as a center for iron goods—documented as early as Engi 14 (914) in the Seiji Yōryaku—provided the technical foundation for this sustained tradition. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobumori信守 | 987-1596 | 0 |
| Sadakuni貞國 | 1441-1444 | 0 |
| Nobutsugu信次 | 1444-1449 | 0 |
| Nobuie信家 | 1394-1428 | 0 |
| Tomotsugu朝次 | 1394-1428 | 0 |
This work carries older NBTHK “Kichō”-era papers, which the NBTHK no longer issues and now regards as unreliable. To confirm the attribution, submission to an official Japanese examination body (such as the NBTHK or NTHK) for modern certification could be considered.
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.