The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
<audio controls preload="auto"> <source src="clocktowerbell.mp3" type="audio/mpeg" /> </audio> Moto-haba (Width at Ha-machi) : Approx. 2.03 cm Mune-Kasane (Thickness) : Approx. 0.52 cm Shinogi-Kasane (Thickness) : Approx. 0.55 cm Gassan Sadakatsu was born in Meiji 2 in Osaka, Yariya-machi. Inheriting the superior skills of his father, Unryushi Sadakazu, who was highly praised as a master and served as a Teishitsu Gigeiin, he performed daisaku for him. His attitude toward his work was extremely sincere and strict; it is said that when forging guardian swords for the Imperial Family or sacred swords for Ise Jingu and Meiji Jingu, he would enclose the forging area with take-yarai, hang manmaku, spread tamajari to purify the space, and offer prayers to the gods and Buddha (Note 1).
Offered by Choshuya
6 on the market










Machine translation from the shop's Japanese · may contain errors ·
Shinshinto · Osaka · around 1926-1989
Fujishiro Jo saku · Tōken Taikan top 60%
6 pieces on the market now
Where Sadakatsu 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.
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Shinshinto · Settsu
27 pieces on the market now
| Smith | Era | Designated |
|---|---|---|
| Sadaharu貞晴 | 1865-1868 | 0 |
| Sadayoshi貞吉 | 1926-1989 | 0 |
| Yoshiaki吉明 | 1844-1848 | 0 |
| Naonobu直信 | 1854-1860 | 0 |
| Sadayoshi貞吉 | 1830-1863 | 0 |
Shōwa to the present: destruction and revival
The twentieth century nearly killed the craft twice: wartime distortion, then the occupation ban. The NBTHK’s founding in 1948 and licensed forging from 1953 rebuilt the sword as an art, crowned by Living National Treasures and the mukansa rank.
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, due to our fault, the item differs significantly from its proper condition, the item may be returned. Cooling-off is within one week of the item's arrival.
¥600,000