This is an unsigned tachi attributed to Chiyozuru Morihiro, dating to the Muromachi period (circa 1355). It comes with a Tokubetsu Hozon certificate from the NBTHK. The blade has a length of 69.7 cm and a curvature of 2.0 cm.
Certificate reading — 無銘（千代鶴守弘）
NihontoWatchmumei · Muromachi · nagasa 69.7cm · sori 2cm
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 siteContact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.
This is an unsigned tachi attributed to Chiyozuru Morihiro, dating to the Muromachi period (circa 1355). It comes with a Tokubetsu Hozon certificate from the NBTHK. The blade has a length of 69.7 cm and a curvature of 2.0 cm.
Certificate reading — 無銘（千代鶴守弘）
NihontoWatchmumei · Muromachi · nagasa 69.7cm · sori 2cm
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 siteContact within 3 days of receipt; returns not accepted for modified items or when trade-in goods are involved.