This katana is attributed to Yamato Aritoshi of the Yamato Taima School, dating to the Jōji era (1362–1368) of the Nanbokuchō period. It features a deep curvature, itame-hada jigane with utsuri, and a hamon close to suguha with prominent nijūba. The sword comes with both shirasaya and a decorative koshirae, and is certified by NBTHK Tokubetsu Hozon and NTHK Tokubetsu Kicho.
mumei · Yamato Taima · Nanbokucho · nagasa 69.2cm · sori 2.2cm







Yamato · around 1334-1338
1 piece 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 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 katana is attributed to Yamato Aritoshi of the Yamato Taima School, dating to the Jōji era (1362–1368) of the Nanbokuchō period. It features a deep curvature, itame-hada jigane with utsuri, and a hamon close to suguha with prominent nijūba. The sword comes with both shirasaya and a decorative koshirae, and is certified by NBTHK Tokubetsu Hozon and NTHK Tokubetsu Kicho.
mumei · Yamato Taima · Nanbokucho · nagasa 69.2cm · sori 2.2cm







Yamato · around 1334-1338
1 piece 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 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.