This is a circular iron tsuba from the Edo period, certified Hozon by the NBTHK. It features an openwork (sukashi) design of a Kozuchi (mallet), a symbol of good fortune and one of the Takara zukushi treasures. The mallet is associated with Daikokuten, the god of wealth, who brings good luck and bountiful harvests.
Certificate reading — 無銘(刀匠)
mumei · Edo






Tosho School
Edo
Unsigned
Hozon (NBTHK)
Tosho-Katchushi
19 pieces on the market now
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 siteReturns/exchanges limited to defects caused by shipping (except willful misconduct or gross negligence by the company); customers must contact within 72 hours of receiving the product.
This is a circular iron tsuba from the Edo period, certified Hozon by the NBTHK. It features an openwork (sukashi) design of a Kozuchi (mallet), a symbol of good fortune and one of the Takara zukushi treasures. The mallet is associated with Daikokuten, the god of wealth, who brings good luck and bountiful harvests.
Certificate reading — 無銘(刀匠)
mumei · Edo






Tosho School
Edo
Unsigned
Hozon (NBTHK)
Tosho-Katchushi
19 pieces on the market now
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 siteReturns/exchanges limited to defects caused by shipping (except willful misconduct or gross negligence by the company); customers must contact within 72 hours of receiving the product.