This is a beautiful katana by Koyama Munetoshi, a smith from Mutsu province active in the late Edo period. It features a healthy blade with a graceful Shinogizukuri shape, Ko-Itame jigane, and a vibrant Gunome-Choji-midare hamon. The sword comes with both shirasaya and koshirae, and is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
NihontoWatchBETAmei · Koyama · Koka (1844-1848) · nagasa 70.6cm · sori 1.8cm
Mutsu · around 1844-1848
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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 a beautiful katana by Koyama Munetoshi, a smith from Mutsu province active in the late Edo period. It features a healthy blade with a graceful Shinogizukuri shape, Ko-Itame jigane, and a vibrant Gunome-Choji-midare hamon. The sword comes with both shirasaya and koshirae, and is accompanied by an NBTHK Tokubetsu Hozon Token certificate.
NihontoWatchBETAmei · Koyama · Koka (1844-1848) · nagasa 70.6cm · sori 1.8cm
Mutsu · around 1844-1848
A Hozon-certified blade judged to show notably superior workmanship and a better state of preservation. The bar is higher: re-tempered blades and most unsigned Muromachi/Edo works are excluded.
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).
