Tokubetsu Hozon Katana: Kinokuni YASUTSUNA Item Number 31-2169 Katana Kinokuni YASUTSUNA Province / Era Kanbun, Kishu With Koshirae, in Shirasaya Nagasa 70.0cm (2 shaku 3 sun 1 bun) Sori 1.4cm (4 bu 6 rin) Motohaba 2.96cm Sakihaba 2.18cm Motojisane 6.4mm Sakijisane 4.8mm Toshin Juyo Bare blade 690g Excluding saya 1,000g Nakago Ubu Mekugi-ana 1 Hamon Hitatsura Price 770,000 Yen (Tax included) Disciple of the first generation Bitchu no Kami Yasuhiro, Kishu Ishido school, also worked in Osaka and other areas. This is a rare Hitatsura for the Ishido school. Jigane is Ko-itame hada.
Certificate reading — 銘 紀伊國康綱
mumei · Ishido · Kanbun (1661-1673) · nagasa 70cm · sori 1.4cm




















Shinto · Kii · around 1661-1673
1 piece on the market now
Shinto · Omi
45 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 |
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 sitePlease request cooling-off within 8 days of the item's arrival. Items that have been altered cannot be handled. Return shipping is the customer's responsibility. If the destination is overseas, returns and refunds are not available.
Tokubetsu Hozon Katana: Kinokuni YASUTSUNA Item Number 31-2169 Katana Kinokuni YASUTSUNA Province / Era Kanbun, Kishu With Koshirae, in Shirasaya Nagasa 70.0cm (2 shaku 3 sun 1 bun) Sori 1.4cm (4 bu 6 rin) Motohaba 2.96cm Sakihaba 2.18cm Motojisane 6.4mm Sakijisane 4.8mm Toshin Juyo Bare blade 690g Excluding saya 1,000g Nakago Ubu Mekugi-ana 1 Hamon Hitatsura Price 770,000 Yen (Tax included) Disciple of the first generation Bitchu no Kami Yasuhiro, Kishu Ishido school, also worked in Osaka and other areas. This is a rare Hitatsura for the Ishido school. Jigane is Ko-itame hada.
Certificate reading — 銘 紀伊國康綱
mumei · Ishido · Kanbun (1661-1673) · nagasa 70cm · sori 1.4cm




















Shinto · Kii · around 1661-1673
1 piece on the market now
Shinto · Omi
45 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 |
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 sitePlease request cooling-off within 8 days of the item's arrival. Items that have been altered cannot be handled. Return shipping is the customer's responsibility. If the destination is overseas, returns and refunds are not available.