NihontoWatchOrdering Number: 25796Katana in Shirasaya with Box (NBTHK Tokubetsu Hozon Token)Signature:Osaka Ju Gassan Sadakatsu Kinsaku (written seal mark)大阪住月山貞勝謹作(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku).This work is ranked as Jyojyo Saku for Gassan Sadakatsu.Habaki: Gassan habaki.Habaki: silver single habaki (Gassan style)Blade Length: 68.6cm (27.01in)Curvature: 2.2cm (0.87in)Mekugi-ana: 1Motohaba: 3.11cm (1.22in)Sakihaba: 2.02cm (0.80in)Kasane: 0.74cm (0.29in)Weight: 820gShape: Standard width, slightly thick, with Mitsumune. Deep curvature with a noticeable difference between the width at the base and the tip, and an extended and sharp kissaki.Jigane: Ayasugi-hada patternsHamon: Nie-deki ko-midare mixed with small gunome-midare. Frequent sunagashi runs through the hamon in harmony with the Ayasugi patterns of Jigane. The boshi is vigorously hakikake blending in Ayasugi-hada.Features:Gassan Sadakatsu, the son of the first-generation Gassan Sadakazu, was one of the representative swordsmiths from 20th century. He is known as a master swordsmith skilled not only in Ayasugi-hada but also in a wide variety of forging styles.This work is an excellent example of the Ayasugi-hada established by his grandather Sadayoshi, who revived the Ayasugi-hada forging pattern originally forged by the Gassan school swordsmiths of the Muromachi period.This piece reserved in healthy condition with the original edge (Ububa) completely intact.The inscription on the box was written by the swordsmith himself and reads, “Senzo Denrai Ayasugi no Hijutsu” (The secret technique of Ayasugi handed down from ancestors).With BoxNBTHK Tokubetsu Hozon CertificateAoi-Art estimation paper: whole OshigataPlease note: The price does not include the international shipping fees.Price:1,800,000JPYご注文はこちらRelated Items:Katana: Osaka Ju Gassan Sadakatsu Kinsaku (Kao)(NBTHK Tokubetsu Hozon Token)Katana:Osaka Ju Gassan Sadakatsu (Kao) (NBTHK Tokubetsu Hozon Token)Tachi:
Certificate reading — 銘 大阪住月山貞勝謹作（花押）
NihontoWatchOffered by Aoi Art
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Shinshinto · Osaka · around 1926-1989
Fujishiro Jo saku · Tōken Taikan top 60%
7 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
28 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 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.