NihontoWatch本造り三ツ棟 うぶ茎 柾目肌詰み、地沸厚くつき細かな地景入る。刃紋は中直調子、互の目、尖り心の刃交じる。匂い口フックラと小沸よくつく。小足、葉、盛んに働き、金筋、砂流しかかる。匂い口沈み心に明るく冴える。月山貞勝。本名は月山英太郎。初代貞一の子。本作は常陸宮様御生誕記念作です。金梨地糸巻太刀拵（現代）付き。(特別保存刀剣)
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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 siteWithin one week of the item's arrival (cooling-off is possible within Japan only). For defects that differ from the purchase conditions, we will accept the return and refund the payment. For other cases such as overseas, we will consult separately.