This is a katana by Shirakake school from the late Kamakura period. The blade has a nagasa of 71.1cm and features a straight hamon with small irregular patterns, frequent gold lines, and bright nioiguchi. It is a masterpiece with a healthy and vigorous appearance.
kinzogan-mei · Shirakake · Kamakura · nagasa 71.1cm · sori 2.2cm


Yamato-den · Yamato
15 pieces on the market now
The Shikkake school (尻懸派) stands among the five great Yamato traditions (Yamato goha) that flourished in the shadow of Nara's powerful temples during the late Kamakura period. While traditionally attributed to Norihiro as founder, Norinaga (則長) is regarded as the de facto progenitor, documented through extant tantō bearing inscriptions of his age: forty-eight in Bunpō 3 (1319) and sixty-nine in Ryakuō 3 (1340). These datings place his birth in Bun'ei 9 (1272), establishing him as a contemporary of the school's early development. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Norinaga則長 | 1317-1319 | 45 |
| Norinari則成 | 1312-1317 | 0 |
| Nagamitsu長光 | 1233-1234 | 0 |
| Sukehiro助弘 | 1308-1311 | 0 |
| Norisada則貞 | 1428-1429 | 0 |
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 siteReturns/exchanges/cancellations not accepted after shipment except for significant defects; if defective, return/exchange possible within 3 days of arrival (return shipping paid by customer).
This is a katana by Shirakake school from the late Kamakura period. The blade has a nagasa of 71.1cm and features a straight hamon with small irregular patterns, frequent gold lines, and bright nioiguchi. It is a masterpiece with a healthy and vigorous appearance.
kinzogan-mei · Shirakake · Kamakura · nagasa 71.1cm · sori 2.2cm


Yamato-den · Yamato
15 pieces on the market now
The Shikkake school (尻懸派) stands among the five great Yamato traditions (Yamato goha) that flourished in the shadow of Nara's powerful temples during the late Kamakura period. While traditionally attributed to Norihiro as founder, Norinaga (則長) is regarded as the de facto progenitor, documented through extant tantō bearing inscriptions of his age: forty-eight in Bunpō 3 (1319) and sixty-nine in Ryakuō 3 (1340). These datings place his birth in Bun'ei 9 (1272), establishing him as a contemporary of the school's early development. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Norinaga則長 | 1317-1319 | 45 |
| Norinari則成 | 1312-1317 | 0 |
| Nagamitsu長光 | 1233-1234 | 0 |
| Sukehiro助弘 | 1308-1311 | 0 |
| Norisada則貞 | 1428-1429 | 0 |
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 siteReturns/exchanges/cancellations not accepted after shipment except for significant defects; if defective, return/exchange possible within 3 days of arrival (return shipping paid by customer).