This is a katana by Jiro Taro Naokatsu, dated February 1839. Naokatsu was a student and adopted heir of Naotane, known for producing many substitute works for his master. The blade features a wide, thick shape with deep curvature, fine koitame hada, and gunoeme-midare hamon with abundant sunagashi and kinsuji. It comes with a shirasaya and koshirae, and is certified as NBTHK Tokubetsu Hozon Token.
mei · Tenpo (1830-1844) · nagasa 70.3cm · sori 1.88cm





Shinshinto · Kozuke · around 1830-1844
1 piece on the market now
Where Naokatsu 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.
Shinshinto · Musashi
75 pieces on the market now
At Hamachō in Edo, in the closing decades of the eighteenth century and the opening ones of the nineteenth, Suishinshi Masahide[[c:1]] gathered the school that would turn Japanese swordmaking back toward its medieval models. Born Kawabe Gihachirō at Akayu in Dewa in 1750, signing first as Suzuki Takahide and then Eikoku, he studied under the Shitahara smith Yoshihide of Musashi, took the name Masahide in An'ei 3, and served the Akimoto house of Yamagata before settling in Edo, where he worked for nearly fifty years. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Naotane直胤 | 1801-1837 | 40 |
| Masahide正秀 | 1777-1817 | 28 |
| Sukemasa助政 | 1804-1825 | 8 |
| Jirotaro Naokatsu直勝 | 1805-1858 | 6 |
| Masayoshi正義 | 1791-1860 | 5 |
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 siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.
This is a katana by Jiro Taro Naokatsu, dated February 1839. Naokatsu was a student and adopted heir of Naotane, known for producing many substitute works for his master. The blade features a wide, thick shape with deep curvature, fine koitame hada, and gunoeme-midare hamon with abundant sunagashi and kinsuji. It comes with a shirasaya and koshirae, and is certified as NBTHK Tokubetsu Hozon Token.
mei · Tenpo (1830-1844) · nagasa 70.3cm · sori 1.88cm





Shinshinto · Kozuke · around 1830-1844
1 piece on the market now
Where Naokatsu 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.
Shinshinto · Musashi
75 pieces on the market now
At Hamachō in Edo, in the closing decades of the eighteenth century and the opening ones of the nineteenth, Suishinshi Masahide[[c:1]] gathered the school that would turn Japanese swordmaking back toward its medieval models. Born Kawabe Gihachirō at Akayu in Dewa in 1750, signing first as Suzuki Takahide and then Eikoku, he studied under the Shitahara smith Yoshihide of Musashi, took the name Masahide in An'ei 3, and served the Akimoto house of Yamagata before settling in Edo, where he worked for nearly fifty years. Learn more →
| Smith | Era | Designated |
|---|---|---|
| Naotane直胤 | 1801-1837 | 40 |
| Masahide正秀 | 1777-1817 | 28 |
| Sukemasa助政 | 1804-1825 | 8 |
| Jirotaro Naokatsu直勝 | 1805-1858 | 6 |
| Masayoshi正義 | 1791-1860 | 5 |
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 siteIf you wish to return an item, please notify us within 3 days of receipt. After this period we cannot accept cancellations. Please ship the return to us within 5 business days. Cancellation is conditional on the item being kept in the same condition as at the time of sale, so please handle it with care.