{"id":31677,"date":"2026-05-24T10:34:10","date_gmt":"2026-05-24T01:34:10","guid":{"rendered":"https:\/\/sword-auction.com\/?post_type=product&p=31677"},"modified":"2026-05-24T11:59:19","modified_gmt":"2026-05-24T02:59:19","slug":"as25796-katana-osaka-ju-gassan-sadakatsu-kinsaku-written-seal-marknbthk-tokubetsu-hozon-token","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/31677\/as25796-katana-osaka-ju-gassan-sadakatsu-kinsaku-written-seal-marknbthk-tokubetsu-hozon-token\/","title":{"rendered":"AS25796 Katana: Osaka Ju Gassan Sadakatsu Kinsaku (written seal mark)(NBTHK Tokubetsu Hozon Token)"},"content":{"rendered":"

Ordering Number: AS25796<\/p>\n

Katana in Shirasaya with Box (NBTHK Tokubetsu Hozon Token)<\/p>\n

Signature:
\nOsaka Ju Gassan Sadakatsu Kinsaku (written seal mark)
\n\u5927\u962a\u4f4f\u6708\u5c71\u8c9e\u52dd\u8b39\u4f5c<\/p>\n

(We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku).
\nThis work is ranked as Jyojyo Saku for Gassan Sadakatsu.
\nHabaki: Gassan habaki.<\/p>\n

Habaki: silver single habaki (Gassan style)
\nBlade Length: 68.6cm (27.01in)
\nCurvature: 2.2cm (0.87in)
\nMekugi-ana: 1
\nMotohaba: 3.11cm (1.22in)
\nSakihaba: 2.02cm (0.80in)
\nKasane: 0.74cm (0.29in)
\nWeight: 820g <\/p>\n

Shape: 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.
\nJigane: Ayasugi-hada patterns
\nHamon: 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.<\/p>\n

Features:
\nGassan 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.
\nThis 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.
\nThis piece reserved in healthy condition with the original edge (Ububa) completely intact.
\nThe inscription on the box was written by the swordsmith himself and reads, \u201cSenzo Denrai Ayasugi no Hijutsu\u201d (The secret technique of Ayasugi handed down from ancestors).<\/p>\n

With Box
\nNBTHK Tokubetsu Hozon Certificate
\nAoi-Art estimation paper: whole Oshigata <\/p>\n

Please note: The price does not include the international shipping fees. <\/p>\n

\"\"<\/a>\"\"<\/a>\"\"<\/a>
\n\"\"<\/a>\"\"<\/a>\"\"<\/a>\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Ordering Number: AS25796 Katana in Shirasaya with Box (NBTHK Tokubetsu Hozon Token) Signature: Osaka Ju Gassan Sadakatsu Kinsaku (written seal mark) \u5927\u962a\u4f4f\u6708\u5c71\u8c9e\u52dd\u8b39\u4f5c (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 […]\n","protected":false},"featured_media":0,"template":"","meta":[],"product_brand":[],"product_cat":[123,122],"product_tag":[],"class_list":{"0":"post-31677","1":"product","2":"type-product","3":"status-publish","5":"product_cat-katana-en","6":"product_cat-sword-en","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"product-type-auction"},"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/31677","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/media?parent=31677"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_brand?post=31677"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_cat?post=31677"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_tag?post=31677"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}