An iron tsuba signed Bushu Ju Kunihiro, decorated with six tomoe. Bushu Kunihiro was not a single person, but four or five artists working from around 1700 to 1800 in the Edo period. The tsuba is accompanied by NBTHK Hozon Tosogu certification.










Bushu School
Edo
Musashi
Signed
Hozon (NBTHK)
Iron-tsuba · Musashi
Certifies a genuine fitting worth preserving: a correct signature, or, if unsigned, an identifiable era and school, with recognized artistic and craft value.
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 site30-day refund policy. Items must be returned in original condition and packaging; customized products are non-returnable. 2-week inspection window with full item refund (shipping costs non-refundable). Customer pays return shipping.
An iron tsuba signed Bushu Ju Kunihiro, decorated with six tomoe. Bushu Kunihiro was not a single person, but four or five artists working from around 1700 to 1800 in the Edo period. The tsuba is accompanied by NBTHK Hozon Tosogu certification.










Bushu School
Edo
Musashi
Signed
Hozon (NBTHK)
Iron-tsuba · Musashi
Certifies a genuine fitting worth preserving: a correct signature, or, if unsigned, an identifiable era and school, with recognized artistic and craft value.
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 site30-day refund policy. Items must be returned in original condition and packaging; customized products are non-returnable. 2-week inspection window with full item refund (shipping costs non-refundable). Customer pays return shipping.