This is a Ko-Katchushi tsuba featuring a bold futatsu-tomoe (double tomoe) openwork design. The iron has a deep black color with a rich luster, and the surface shows forging marks characteristic of early works. The tsuba was later fitted with a yamagane fukurin (rim) adorned with a kikko (tortoise shell) pattern, enhancing its aesthetic appeal.
NihontoWatchmumei · Ko-Katchushi · Koto
Kotō
Unsigned
Tokuho (NBTHK)
A Hozon-certified fitting of notably superior craftsmanship and condition, often with signature or workmanship of high reference 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 siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
This is a Ko-Katchushi tsuba featuring a bold futatsu-tomoe (double tomoe) openwork design. The iron has a deep black color with a rich luster, and the surface shows forging marks characteristic of early works. The tsuba was later fitted with a yamagane fukurin (rim) adorned with a kikko (tortoise shell) pattern, enhancing its aesthetic appeal.
NihontoWatchmumei · Ko-Katchushi · Koto
Kotō
Unsigned
Tokuho (NBTHK)
A Hozon-certified fitting of notably superior craftsmanship and condition, often with signature or workmanship of high reference 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 siteIf, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
