This is a large Shobu-zukuri tanto by Nobukuni Heishiro Yoshimasa from the Shinto era. The blade is in exceptionally good condition, fully polished and sound, with itame grain and notare with gunome hamon. It comes with both Tokubetsu Hozon and Tokubetsu Kicho certificates.
mei · Nobukuni · Kanei (1624-1644) · nagasa 39.3cm · sori 1.3cm








Yamashiro-den · Chikuzen · around 1661-1673
Fujishiro Jo saku · Tōken Taikan top 49%
3 pieces on the market now
Where Yoshimasa stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Yamashiro-den · Yamashiro
32 pieces on the market now
Few Kyoto houses bridged two traditions as deliberately as Nobukuni (信国), the Yamashiro-den lineage whose work runs from the Nanbokucho period through Muromachi and on, in a western branch, into the shinto age. The first generation, the smith the NBTHK counts as shodai, is the master of the Enbun, Koan and Joji years; the older registers placed a founding Nobukuni back in the Kenmu era, but the published sources set that legend aside, since no work survives so early and the style of the oldest dated blades connects directly with that of Sadamune. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobukuni信國 | 1356-1361 | 69 |
| Nobukuni信國 | 1383-1392 | 33 |
| Nobukuni信國 | 1394-1428 | 44 |
| Yoshikane吉包 | 1661-1686 | 7 |
| Masanobu正信 | 1356-1361 | 4 |
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 siteAs a general rule, returns/exchanges are not accepted on Japanese sword orders unless damaged upon delivery. Other items: returns/exchanges accepted within 7 days of delivery. Cancellation for personal reasons incurs a 30% restocking fee (70% refunded). Return shipping must be prepaid and insured by the buyer; shipping/handling fees are non-refundable. Contact katana@tozando.co.jp to initiate a return.
This is a large Shobu-zukuri tanto by Nobukuni Heishiro Yoshimasa from the Shinto era. The blade is in exceptionally good condition, fully polished and sound, with itame grain and notare with gunome hamon. It comes with both Tokubetsu Hozon and Tokubetsu Kicho certificates.
mei · Nobukuni · Kanei (1624-1644) · nagasa 39.3cm · sori 1.3cm








Yamashiro-den · Chikuzen · around 1661-1673
Fujishiro Jo saku · Tōken Taikan top 49%
3 pieces on the market now
Where Yoshimasa stands among comparable artisans: across all of nihontō, and within tradition, era, and period. The tiers (Foremost · Leading · Major · Notable) weigh official designations from the NBTHK and Japan's Agency for Cultural Affairs, together with historical honors of lasting repute such as the Sansaku and Meibutsu-chō.
Select a lens to see how it's measured.
Yamashiro-den · Yamashiro
32 pieces on the market now
Few Kyoto houses bridged two traditions as deliberately as Nobukuni (信国), the Yamashiro-den lineage whose work runs from the Nanbokucho period through Muromachi and on, in a western branch, into the shinto age. The first generation, the smith the NBTHK counts as shodai, is the master of the Enbun, Koan and Joji years; the older registers placed a founding Nobukuni back in the Kenmu era, but the published sources set that legend aside, since no work survives so early and the style of the oldest dated blades connects directly with that of Sadamune. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Nobukuni信國 | 1356-1361 | 69 |
| Nobukuni信國 | 1383-1392 | 33 |
| Nobukuni信國 | 1394-1428 | 44 |
| Yoshikane吉包 | 1661-1686 | 7 |
| Masanobu正信 | 1356-1361 | 4 |
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 siteAs a general rule, returns/exchanges are not accepted on Japanese sword orders unless damaged upon delivery. Other items: returns/exchanges accepted within 7 days of delivery. Cancellation for personal reasons incurs a 30% restocking fee (70% refunded). Return shipping must be prepaid and insured by the buyer; shipping/handling fees are non-refundable. Contact katana@tozando.co.jp to initiate a return.