{"id":29923,"date":"2026-01-20T12:04:38","date_gmt":"2026-01-20T03:04:38","guid":{"rendered":"https:\/\/sword-auction.com\/product\/29923\/as25258-%e5%88%80%ef%bc%9a%e6%b9%a7%e6%b0%b4%e5%bf%83%e8%b2%9e%e5%90%89%e4%bd%9c%e7%84%a1%e9%91%91%e6%9f%bb%e5%88%80%e5%8c%a0-%e6%98%ad%e5%92%8c%e7%99%b8%e4%ba%a5%e7%a7%8b%ef%bc%88%e7%89%b9\/"},"modified":"2026-01-20T12:07:36","modified_gmt":"2026-01-20T03:07:36","slug":"as25258-%e5%88%80%ef%bc%9a%e6%b9%a7%e6%b0%b4%e5%bf%83%e8%b2%9e%e5%90%89%e4%bd%9c%e7%84%a1%e9%91%91%e6%9f%bb%e5%88%80%e5%8c%a0-%e6%98%ad%e5%92%8c%e7%99%b8%e4%ba%a5%e7%a7%8b%ef%bc%88%e7%89%b9","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/29923\/as25258-%e5%88%80%ef%bc%9a%e6%b9%a7%e6%b0%b4%e5%bf%83%e8%b2%9e%e5%90%89%e4%bd%9c%e7%84%a1%e9%91%91%e6%9f%bb%e5%88%80%e5%8c%a0-%e6%98%ad%e5%92%8c%e7%99%b8%e4%ba%a5%e7%a7%8b%ef%bc%88%e7%89%b9\/","title":{"rendered":"AS25258  Katana:Yusuishin Sadayoshi Saku Showa Mizunoto-I Aki(1983)(NBTHK Tokubetsu  Hozon)"},"content":{"rendered":"<p>Ordering number:AS25258<\/p>\n<p>Katana in Shirasaya(NBTHK Tokubetsu  Hozon)*<\/p>\n<p>Signature :\u3000Yusuishin Sadayoshi Saku<br \/>\nShowa Mizunoto-I Aki(1983)<\/p>\n<p>(We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku)<br \/>\nThis sword belongs to Jyo Jyo saku ranking.<br \/>\nThe blade was polished.<br \/>\nHabaki :\u3000Gold foiled single habaki.<br \/>\nBlade length : 71.2 cm (28.03 in)<br \/>\nSori: 2.1 cm (0.83 in)<br \/>\nMekugi : \u30001<br \/>\nWidth at the hamachi: 3.26 cm (1.28 in).<br \/>\nWidth at the Kissaki: 2.80 cm (1.10 in)<br \/>\nKasane: 0.82 cm (0.32 in)<br \/>\nEra : Showa period(1983)<\/p>\n<p>Shape : This wide and thick sword has O-Kissaki. There&#8217;re Bohi carved into on the both side.<br \/>\nJigane :Ko-Itame Hada well grained with Jinie attach.<br \/>\nThe Jigane is clear. There are fine Chikei.<br \/>\nHamon : Nie Deki, Gunome Midare and double Ha with many Ashi.<br \/>\nIn Ha, there are Ashi, Yo, Sunagashi and Kinsuji.<br \/>\nBoshi is round and Midarekomi shape.<\/p>\n<p>Special feature: Sadayoshi was a modern swordsmith<br \/>\nin Tokushima prefecture. He was born in 1908.<br \/>\nIn 1928, he started to study forging under Gassan Sadakatsu.<br \/>\nIn 1943, he moved to Mishima of Shizuoka prefecture<br \/>\nfrom Tokushima prefecture, and he moved many swords while World War 2.<br \/>\nHe has gotten Nyusen prize many times,<br \/>\nand he became a Mukansa swordsmith in 1996.<br \/>\n\u201cYusui\u201d of his signature means clear springwater.<br \/>\nAnd so, he might use clear springwater for making swords.<\/p>\n<p>From Aoi Art: Sadayoshi was highly renowned throughout as a great sword smith.<br \/>\nHe was a student of Gassan Sadakatsu. He helped his work.<br \/>\nYusuishin Sadayoshi was very famous swordsmith designated Mukansa, he made swords with spring water from Mt.Fuji. We recommend this gorgeous blade for you.<\/p>\n<p>Aoi Art estimation paper: whole Oshigata.<br \/>\nNBTHK Tokubetsu Hozon token paper *to be issued soon<\/p>\n<p>Please note: The price does not include the international shipping fees.<\/p>\n<p><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-2.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-3.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-3.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-4.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452-4.jpg\" alt=\"\" width=\"30%\" height=\"30%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452paper-1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452paper-1.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452paper-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452paper-2.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452sayagaki.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452sayagaki.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452_p.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2019\/19452_p.jpg\" alt=\"\" width=\"70%\" height=\"70%\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/tokuho.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/tokuho.jpg\" alt=\"\" width=\"40%\" height=\"40%\" \/><\/a>   <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ordering number:AS25258 Katana in Shirasaya(NBTHK Tokubetsu Hozon)* Signature :\u3000Yusuishin Sadayoshi Saku Showa Mizunoto-I Aki(1983) (We divide 4 sections for each sword as Saijyo saku, Jyojyo saku Jyo saku and regular saku) This sword belongs to Jyo Jyo saku ranking. The blade was polished. Habaki :\u3000Gold foiled single habaki. Blade length : 71.2 cm (28.03 in) [&#8230;]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-29923","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\/29923","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=29923"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}