Around 1800 Suishinshi Masahide argued in his writings that the craft must return to the old masters’ methods: the fukkotō revival. His greatest successor Naotane worked convincingly in Bizen and Sōshū manners that had been dead for centuries.
This is a Hozon-certified wakizashi by Ryuunsai Minamoto Sadamitsu, a student of Gassan Sadakazu, active in Yamashiro Province during the late Edo period. It features a rare cutting test inscription, "Ni-no-do Ue-no-do Dodan-barai," indicating exceptional sharpness. The blade exhibits a ko-itame hada mixed with masame and a chū-suguha hamon, presented in a tastefully assembled koshirae.
mei · Shin-shinto · nagasa 54.1cm · sori 1cm


















The Shinshintō revival
Around 1800 Suishinshi Masahide argued in his writings that the craft must return to the old masters’ methods: the fukkotō revival. His greatest successor Naotane worked convincingly in Bizen and Sōshū manners that had been dead for centuries.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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 siteThree-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.
This is a Hozon-certified wakizashi by Ryuunsai Minamoto Sadamitsu, a student of Gassan Sadakazu, active in Yamashiro Province during the late Edo period. It features a rare cutting test inscription, "Ni-no-do Ue-no-do Dodan-barai," indicating exceptional sharpness. The blade exhibits a ko-itame hada mixed with masame and a chū-suguha hamon, presented in a tastefully assembled koshirae.
mei · Shin-shinto · nagasa 54.1cm · sori 1cm


















The Shinshintō revival
Around 1800 Suishinshi Masahide argued in his writings that the craft must return to the old masters’ methods: the fukkotō revival. His greatest successor Naotane worked convincingly in Bizen and Sōshū manners that had been dead for centuries.
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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 siteThree-day cooling-off period from receipt for refund or exchange. Return shipping and transfer fees are customer responsibility. Items showing use or condition changes are non-returnable.