{"id":33790,"date":"2026-10-24T12:28:39","date_gmt":"2026-10-24T03:28:39","guid":{"rendered":"https:\/\/sword-auction.com\/product\/33790\/as26532-%e5%88%80%e7%84%a1%e9%8a%98%e8%b6%8a%e5%89%8d%e4%b8%89%e4%bb%a3%e5%ba%b7%e7%b6%99-%e9%87%91%e8%b1%a1%e5%b5%8c%e4%b8%a1%e8%bb%8a%e4%ba%8c%e3%83%84%e8%83%b4%e8%a3%81%e6%96%ad-%e5%b1%b1\/"},"modified":"2026-10-24T12:30:09","modified_gmt":"2026-10-24T03:30:09","slug":"as26532-%e5%88%80%e7%84%a1%e9%8a%98%e8%b6%8a%e5%89%8d%e4%b8%89%e4%bb%a3%e5%ba%b7%e7%b6%99-%e9%87%91%e8%b1%a1%e5%b5%8c%e4%b8%a1%e8%bb%8a%e4%ba%8c%e3%83%84%e8%83%b4%e8%a3%81%e6%96%ad-%e5%b1%b1","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/33790\/as26532-%e5%88%80%e7%84%a1%e9%8a%98%e8%b6%8a%e5%89%8d%e4%b8%89%e4%bb%a3%e5%ba%b7%e7%b6%99-%e9%87%91%e8%b1%a1%e5%b5%8c%e4%b8%a1%e8%bb%8a%e4%ba%8c%e3%83%84%e8%83%b4%e8%a3%81%e6%96%ad-%e5%b1%b1\/","title":{"rendered":"AS26532   Katana\uff1a Mumei(Unsigned)(Echizen 3th gen Yasutsugu \u8d8a\u524d\u5eb7\u7d99) (Golden insription)\uff1aRyoguruma Futatsudo Saidan \u4e21\u8eca\u4e8c\u30c4\u80f4\u88c1\u65ad  Yamano Kichizaemon Hisatoyo(written seal mark)(NBTHK Hozon Token)"},"content":{"rendered":"<p>Ordering Number: AS26532<\/p>\n<p>Katana in Shirasaya(NBTHK Hozon Token)<\/p>\n<p>Inscription:<br \/>\nMumei(Unsigned)(Echizen 3th gen Yasutsugu \u8d8a\u524d\u5eb7\u7d99)<br \/>\n(Golden insription):<br \/>\nRyoguruma Futatsudo Saidan \u4e21\u8eca\u4e8c\u30c4\u80f4\u88c1\u65ad<br \/>\nYamano Kichizaemon Hisatoyo(written seal mark)<br \/>\n\u5c71\u91ce\u5409\u5de6\u885b\u9580\u5c09\u4e45\u8c4a<br \/>\nJokyo Yo-nen Juni-gatsu Juichi-nichi<br \/>\n\u8c9e\u4eab\u56db\u5e74\u5341\u4e8c\u6708\u5341\u4e00\u65e5<\/p>\n<p>Wazamono: Jyo Saku: Musashi province: Kanbun era.<br \/>\nWe divide works in to Saijo Saku, Jyojyo Saku, Jyo Saku,and Regular Saku.<br \/>\nThis piece is ranked as Jyojyo Saku for Mumei(Echizen 3th gen Yasutsugu).<br \/>\nHabaki: Single silver habaki.<br \/>\nBlade Length: 72.0 cm (28.35 in).<br \/>\nCurvature: 1.7 cm (0.67 in).<br \/>\nMekugi Hole: 4 (3 filled).<br \/>\nWidth at Base (Motohaba): 3.14 cm (1.24 in).<br \/>\nWidth at Yokote: 1.99 cm (0.78 in).<br \/>\nThickness of rim (Kasane): 0.93 cm (0.37 in).<br \/>\nSword Weight: 790 g.<br \/>\nEra: Edo period.<br \/>\nShape: The blade has been shortened (suriage) and has undergone machi-okuri (relocation of the notches at the base of the blade).<br \/>\nJigane: Well-forged itame hada.<br \/>\nIt is believed that Nanban-tetsu (imported foreign iron) may have been used in the forging of this blade.<br \/>\nHamon: Notare with abundant kinsuji.<\/p>\n<p>Features: The 3rd-generation Echizen Yasutsugu was the 3rd son of the 1st-generation Yasutsugu.<br \/>\nHe was initially known as Shiroemon and later adopted the name Ichiemon.<br \/>\nFollowing the death of his elder brother, the 2nd-generation Yasutsugu, the family lineage divided into 2 branches, one based in Echizen and the other in Edo, with both successors assuming the title of 3rd-generation Yasutsugu.<br \/>\nHis workmanship faithfully followed the traditions established by the 1st and 2nd generations, and he produced highly regarded blades.<br \/>\nHe passed away in January 1683 (Tenna 3).<\/p>\n<p>A historical record survives documenting a cutting test performed on January 13, 1688 (December 11, 1687, according to the Japanese lunar calendar), by Yamano Kizaemon no Jo Hisatoyo, a sword-testing official serving the Edo shogunate, whose signature and kao (personal seal) appear in the record.<br \/>\nThe saidan-mei (cutting-test inscription) records the results of a cutting test conducted using the bodies of executed criminals.<br \/>\nThe term Futatsu-do indicates that the sword successfully cut through 2 stacked bodies with a single stroke.<br \/>\nRyoguruma refers to the pelvic region, which was considered particularly difficult to cut through because of the large and substantial bones.<br \/>\nThis sword is distinctive for its greater-than-average length and pronounced curvature.<br \/>\nIt is illustrated in the lower volume of Kubikiri Asaemon Token Oshigata (Sword Oshigata of Kubikiri Asaemon).<\/p>\n<p>Historical Background: The Jokyo era (1684\u20131688) fell during the reign of Tokugawa Tsunayoshi, the 5th shogun of the Tokugawa shogunate.<br \/>\nTsunayoshi is particularly well known for the Shorui Awaremi no Rei (Edicts on Compassion for Living Things), which included measures to protect stray dogs.<br \/>\nFor many years, he was portrayed as an incompetent ruler whose excessive concern for animal welfare placed a heavy burden on ordinary people.<br \/>\nHowever, modern historical interpretations have also emphasized the social welfare aspects of his policies, including prohibitions against abandoning infants and measures to protect the sick and vulnerable.<br \/>\nThese reforms are considered by some historians to have represented an effort to transform the values of samurai society, which had inherited a culture of violence and killing from the Sengoku period.<\/p>\n<p>NBTHK Hozon Certificate<br \/>\nAoi-Art estimation Paper<br \/>\nwhole Oshigata<\/p>\n<p>Please note: the price does not include the shipping fees.<\/p>\n<p><a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-2.jpg\" alt=\"\" width=\"32%\" height=\"32%\" \/><\/a> <a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-3.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-3.jpg\" alt=\"\" width=\"20%\" height=\"20%\" \/><\/a> <a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-4.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532-4.jpg\" alt=\"\" width=\"22%\" height=\"22%\" \/><\/a><br \/>\n<a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532paper-1.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532paper-1.jpg\" alt=\"\" width=\u201c60%\" height=\u201c60%\" \/><\/a> <a href=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532paper-2.jpg\"><img decoding=\"async\" src=\"https:\/\/www.aoijapan.com\/img\/sword\/2026\/26532paper-2.jpg\" alt=\"\" width=\u201c60%\" height=\u201c60%\" \/><\/a> <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ordering Number: AS26532 Katana in Shirasaya(NBTHK Hozon Token) Inscription: Mumei(Unsigned)(Echizen 3th gen Yasutsugu \u8d8a\u524d\u5eb7\u7d99) (Golden insription): Ryoguruma Futatsudo Saidan \u4e21\u8eca\u4e8c\u30c4\u80f4\u88c1\u65ad Yamano Kichizaemon Hisatoyo(written seal mark) \u5c71\u91ce\u5409\u5de6\u885b\u9580\u5c09\u4e45\u8c4a Jokyo Yo-nen Juni-gatsu Juichi-nichi \u8c9e\u4eab\u56db\u5e74\u5341\u4e8c\u6708\u5341\u4e00\u65e5 Wazamono: Jyo Saku: Musashi province: Kanbun era. We divide works in to Saijo Saku, Jyojyo Saku, Jyo Saku,and Regular Saku. This piece is ranked [&#8230;]\n","protected":false},"featured_media":0,"template":"","meta":[],"product_brand":[],"product_cat":[123,122],"product_tag":[],"class_list":["post-33790","product","type-product","status-publish","product_cat-katana-en","product_cat-sword-en","first","instock","sold-individually","shipping-taxable","product-type-auction"],"_links":{"self":[{"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product\/33790","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=33790"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_brand?post=33790"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_cat?post=33790"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sword-auction.com\/en\/wp-json\/wp\/v2\/product_tag?post=33790"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}