This antique Japanese Katana is attributed to the Chiyozuru school, active during the late 14th to early 15th century. It comes with an NBTHK Hozon Certificate, confirming its authenticity and historical value. The sword features a koshirae mounting adorned with the prestigious Gosan-no-Kiri (paulownia) motif and nanako-ji metalworking, symbolizing authority and longevity.
Certificate reading — 無銘(加州勝家)
mumei · Chiyozuru · Muromachi · nagasa 65.7cm · sori 1.8cm


























Yamashiro-den · Echizen
10 pieces on the market now
The Chiyozuru lineage took root in Echizen Province during the Nanbokuchō period, and the setsumei consistently trace its origin to Rai Kuniyasu (来国安). He is said to have been born in Yamashiro Province, with one tradition holding him a grandson of Rai Kunisue; he later moved to Echizen, where the meikan place him around the Jōji and Sadaji eras (ca.
1362 to 1368). A parallel tradition, recorded on the signed tachi attributed to Morihiro, names Chiyozuru Kuniyasu[[c:1]] as a disciple of Rai Kuniyasu and the founder of the line. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kuniyasu國安 | 1345-1350 | 4 |
| Ieyoshi家善 | 1487-1489 | 0 |
| Kagemori景守 | 1394-1428 | 0 |
| Munemitsu宗光 | 1441-1444 | 0 |
| Iemasa家正 | 1492-1501 | 0 |
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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 antique Japanese Katana is attributed to the Chiyozuru school, active during the late 14th to early 15th century. It comes with an NBTHK Hozon Certificate, confirming its authenticity and historical value. The sword features a koshirae mounting adorned with the prestigious Gosan-no-Kiri (paulownia) motif and nanako-ji metalworking, symbolizing authority and longevity.
Certificate reading — 無銘(加州勝家)
mumei · Chiyozuru · Muromachi · nagasa 65.7cm · sori 1.8cm


























Yamashiro-den · Echizen
10 pieces on the market now
The Chiyozuru lineage took root in Echizen Province during the Nanbokuchō period, and the setsumei consistently trace its origin to Rai Kuniyasu (来国安). He is said to have been born in Yamashiro Province, with one tradition holding him a grandson of Rai Kunisue; he later moved to Echizen, where the meikan place him around the Jōji and Sadaji eras (ca.
1362 to 1368). A parallel tradition, recorded on the signed tachi attributed to Morihiro, names Chiyozuru Kuniyasu[[c:1]] as a disciple of Rai Kuniyasu and the founder of the line. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Kuniyasu國安 | 1345-1350 | 4 |
| Ieyoshi家善 | 1487-1489 | 0 |
| Kagemori景守 | 1394-1428 | 0 |
| Munemitsu宗光 | 1441-1444 | 0 |
| Iemasa家正 | 1492-1501 | 0 |
Certifies a genuine blade worth preserving: a signature confirmed correct, or, if unsigned, an era, province, and school that the NBTHK can reliably identify.
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.