This is a katana attributed to the Ishido school, certified NBTHK Hozon. The blade has a 71.0 cm nagasa and a 2.2 cm sori, exhibiting a graceful silhouette. The Ishido smiths were known for reviving the Bizen-den styles, and this blade showcases a vivid hamon with clove-shaped undulations.
mumei · Ishido School · Shinto · nagasa 71cm · sori 2.2cm




















Shinto · Omi
46 pieces on the market now
The Ishido school (石堂) traces its root to Omi Province, where smiths surnamed Hioki and bearing names such as Ishido worked before the line dispersed across the country in the early Edo period. From that Omi stem grew four principal branches: the Fukuoka Ishido of Chikuzen, the Edo Ishido carried east by makers who had first gone up from Omi to Kyoto, the Osaka Ishido seeded by smiths who settled in the merchant city, and the Kishu Ishido working under the Kii daimyo. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Tsunemitsu常光 | 1648-1661 | 7 |
| Yasuhiro安廣 | 1661-1673 | 4 |
| Tsunahiro綱廣 | 1673-1681 | 0 |
| Nagatsugu長次 | 1345-1350 | 0 |
| Nagatsugu長次 | 1681-1684 | 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 site30-day money-back guarantee from receipt; items must be unused, complete, in original packaging. Sale items Final Sale. Antique swords non-returnable (Japanese export law). Damage reported within 72 hours. Customer pays return shipping unless seller error/defect. Refunds within 14 days of inspection.
This is a katana attributed to the Ishido school, certified NBTHK Hozon. The blade has a 71.0 cm nagasa and a 2.2 cm sori, exhibiting a graceful silhouette. The Ishido smiths were known for reviving the Bizen-den styles, and this blade showcases a vivid hamon with clove-shaped undulations.
mumei · Ishido School · Shinto · nagasa 71cm · sori 2.2cm




















Shinto · Omi
46 pieces on the market now
The Ishido school (石堂) traces its root to Omi Province, where smiths surnamed Hioki and bearing names such as Ishido worked before the line dispersed across the country in the early Edo period. From that Omi stem grew four principal branches: the Fukuoka Ishido of Chikuzen, the Edo Ishido carried east by makers who had first gone up from Omi to Kyoto, the Osaka Ishido seeded by smiths who settled in the merchant city, and the Kishu Ishido working under the Kii daimyo. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Tsunemitsu常光 | 1648-1661 | 7 |
| Yasuhiro安廣 | 1661-1673 | 4 |
| Tsunahiro綱廣 | 1673-1681 | 0 |
| Nagatsugu長次 | 1345-1350 | 0 |
| Nagatsugu長次 | 1681-1684 | 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 site30-day money-back guarantee from receipt; items must be unused, complete, in original packaging. Sale items Final Sale. Antique swords non-returnable (Japanese export law). Damage reported within 72 hours. Customer pays return shipping unless seller error/defect. Refunds within 14 days of inspection.