This is an unsigned Kozuka attributed to the Ko-Kinko school, featuring a bamboo grass (Sasa-zu) design. It is made of shakudo nanako-ji with takabori and kin-iroe. The piece comes with an NBTHK Hozon Tosogu certificate.
mumei · Ko-Kinko · Momoyama




Momoyama
Unsigned
Hozon (NBTHK)
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 siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).


This is an unsigned Kozuka attributed to the Ko-Kinko school, featuring a bamboo grass (Sasa-zu) design. It is made of shakudo nanako-ji with takabori and kin-iroe. The piece comes with an NBTHK Hozon Tosogu certificate.
mumei · Ko-Kinko · Momoyama




Momoyama
Unsigned
Hozon (NBTHK)
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 siteNo cooling-off period or returns; refund only if the purchased sword is proven fake, capped at purchase price (excludes commission sales, accessories, auction items).

