This is a katana made by Amata Akitsugu, a Living National Treasure, in 1982. It comes with an NBTHK Tokubetsu Hozon certificate. The blade features a robust Kamakura period tachi-style form with a vibrant Bizen Ichimonji-inspired hamon, showcasing the smith's mastery of self-made tamahagane.
Certificate reading — 銘 天田昭次作之 昭和五十七年仲春吉日
mei · Showa (1926-1989) · nagasa 74.7cm · sori 2.3cm




Niigata · around 1926-1989
Tōken Taikan top 87%
6 pieces on the market now
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 siteFor one-of-a-kind items such as swords, sword fittings, and antiques, please contact us about a return within 3 days of the item's arrival and ship it back within 8 days. Refunds are issued the same day the returned item arrives.
This is a katana made by Amata Akitsugu, a Living National Treasure, in 1982. It comes with an NBTHK Tokubetsu Hozon certificate. The blade features a robust Kamakura period tachi-style form with a vibrant Bizen Ichimonji-inspired hamon, showcasing the smith's mastery of self-made tamahagane.
Certificate reading — 銘 天田昭次作之 昭和五十七年仲春吉日
mei · Showa (1926-1989) · nagasa 74.7cm · sori 2.3cm




Niigata · around 1926-1989
Tōken Taikan top 87%
6 pieces on the market now
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 siteFor one-of-a-kind items such as swords, sword fittings, and antiques, please contact us about a return within 3 days of the item's arrival and ship it back within 8 days. Refunds are issued the same day the returned item arrives.