{"id":31188,"date":"2026-04-22T12:50:51","date_gmt":"2026-04-22T03:50:51","guid":{"rendered":"https:\/\/sword-auction.com\/product\/31188\/as25477-%e5%88%80%ef%bc%9a%e5%a4%a7%e9%98%aa%e4%bd%8f%e6%9c%88%e5%b1%b1%e8%b2%9e%e5%8b%9d%e8%ac%b9%e4%bd%9c%e8%8a%b1%e6%8a%bc-%e7%9a%87%e7%b4%80%e4%ba%8c%e5%8d%83%e5%85%ad%e7%99%be%e4%b8%80\/"},"modified":"2026-04-22T12:51:22","modified_gmt":"2026-04-22T03:51:22","slug":"as25477-%e5%88%80%ef%bc%9a%e5%a4%a7%e9%98%aa%e4%bd%8f%e6%9c%88%e5%b1%b1%e8%b2%9e%e5%8b%9d%e8%ac%b9%e4%bd%9c%e8%8a%b1%e6%8a%bc-%e7%9a%87%e7%b4%80%e4%ba%8c%e5%8d%83%e5%85%ad%e7%99%be%e4%b8%80","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/31188\/as25477-%e5%88%80%ef%bc%9a%e5%a4%a7%e9%98%aa%e4%bd%8f%e6%9c%88%e5%b1%b1%e8%b2%9e%e5%8b%9d%e8%ac%b9%e4%bd%9c%e8%8a%b1%e6%8a%bc-%e7%9a%87%e7%b4%80%e4%ba%8c%e5%8d%83%e5%85%ad%e7%99%be%e4%b8%80\/","title":{"rendered":"AS25477 Katana:: Osaka ju Gassan Sadakatsu saku (kao) (NBTHK Tokubetsu Hozon Token)"},"content":{"rendered":"

Ordering Number: AS25477<\/p>\n

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

Signature: Osaka ju Gassan Sadakatsu saku (kao)
\nKoki 2601 (1941)
\n\u5927\u962a\u4f4f\u6708\u5c71\u8c9e\u52dd\u8b39\u4f5c(\u82b1\u62bc)
\n\u7687\u7d00\u4e8c\u5343\u516d\u767e\u4e00\u5e74<\/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
\nBlade Length: 69.0 cm (27.17 in)
\nCurvature: 2.0 cm (0.79 in)
\nMekugi Hole: 1
\nWidth at Base (Motohaba): 2.68 cm (1.06 in)
\nWidth at Tip: 2.02 cm (0.80 in)
\nThickness (Kasane): 0.73 cm (0.29 in)
\nSword Weight: 755 g
\nEra: Koki 2601 (1941)
\nShape: Slightly wide mihaba with thick kasane, high curvature, and a long kissaki.
\nJigane: Ko-itame hada well-forged, with prominent Gassan hada and ayasugi hada. The polish is excellent.
\nHamon: Soft gunome-midare.<\/p>\n

Features: The master of Osaka ju Gassan Sadakatsu was Gassan Sadakazu, who is known as the master who devised the ayasugi hada. During the Meiji period, sword production was banned due to the Haitorei, but later the revival of sword making was permitted, and Sadakazu became a renowned swordsmith as an Imperial Household Artist. His son Sadakatsu skillfully inherited and executed his father\u2019s ayasugi hada style, gaining great popularity.<\/p>\n

NBTHK Tokubetsu Hozon Token
\nAoiArt 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: AS25477 Katana in Shirasaya (NBTHK Tokubetsu Hozon Token) Signature: Osaka ju Gassan Sadakatsu saku (kao) Koki 2601 (1941) \u5927\u962a\u4f4f\u6708\u5c71\u8c9e\u52dd\u8b39\u4f5c(\u82b1\u62bc) \u7687\u7d00\u4e8c\u5343\u516d\u767e\u4e00\u5e74 (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 Blade Length: 69.0 […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-31188","product","type-product","status-publish","hentry","product_cat-katana-en","product_cat-sword-en"],"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/31188","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=31188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}