Iron tsuba attributed to the Ko-Shoami school, dating to the 16th century. It features a design of rinpo (dharma wheel) and wild geese in sukashi (openwork) carving. The tsuba has visible tekkotsu (iron bones) on the rim and comes with NBTHK Hozon Tosogu certification.
NihontoWatchKo-Shoami · Koto
Ko-Shoami School
Kotō
Hozon (NBTHK)
Iron-tsuba
The Ko-Shōami (Old Shōami) represent a collective of specialist tsuba makers active in Kyōto from the middle through the late Muromachi period, extending into the Momoyama era. The prevailing scholarly view holds that these artisans originally worked as general tōsōgu craftsmen before becoming specialized tsuba makers. Unlike other major schools of the period, Ko-Shōami works lack widely celebrated individual masterpieces, and attributions typically reference the group name rather than specific hands. Learn more →
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.
Iron tsuba attributed to the Ko-Shoami school, dating to the 16th century. It features a design of rinpo (dharma wheel) and wild geese in sukashi (openwork) carving. The tsuba has visible tekkotsu (iron bones) on the rim and comes with NBTHK Hozon Tosogu certification.
NihontoWatchKo-Shoami · Koto
Ko-Shoami School
Kotō
Hozon (NBTHK)
Iron-tsuba
The Ko-Shōami (Old Shōami) represent a collective of specialist tsuba makers active in Kyōto from the middle through the late Muromachi period, extending into the Momoyama era. The prevailing scholarly view holds that these artisans originally worked as general tōsōgu craftsmen before becoming specialized tsuba makers. Unlike other major schools of the period, Ko-Shōami works lack widely celebrated individual masterpieces, and attributions typically reference the group name rather than specific hands. Learn more →
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.
