This is a slightly smaller tanto by Ichi Chounsai Tsunatoshi (2nd Generation), dated December 1868. It features a bohi on the front and a double groove on the back, with a robust thickness. The blade exhibits a tight ko-itame jigane and a small nie structure hamon with continuous togari-gunome. It comes with koshirae and shirasaya, and is certified as NBTHK Tokubetsu Hozon Token.
Certificate reading — 銘 長運斎綱俊(三代) 明治元年十二月
mei · Bunsei (1818-1830) · nagasa 19.5cm






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 siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.
This is a slightly smaller tanto by Ichi Chounsai Tsunatoshi (2nd Generation), dated December 1868. It features a bohi on the front and a double groove on the back, with a robust thickness. The blade exhibits a tight ko-itame jigane and a small nie structure hamon with continuous togari-gunome. It comes with koshirae and shirasaya, and is certified as NBTHK Tokubetsu Hozon Token.
Certificate reading — 銘 長運斎綱俊(三代) 明治元年十二月
mei · Bunsei (1818-1830) · nagasa 19.5cm






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 siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.