{"id":30100,"date":"2026-02-03T11:12:44","date_gmt":"2026-02-03T02:12:44","guid":{"rendered":"https:\/\/sword-auction.com\/?post_type=product&p=30100"},"modified":"2026-02-03T11:12:44","modified_gmt":"2026-02-03T02:12:44","slug":"as25289-tachi-sanryutei-ryosanshi-masamine-saku-kore-living-national-treasure-dated-august-year-of-the-wood-rabbit-1975-nbthk-tokubetsu-hozon-token","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/30100\/as25289-tachi-sanryutei-ryosanshi-masamine-saku-kore-living-national-treasure-dated-august-year-of-the-wood-rabbit-1975-nbthk-tokubetsu-hozon-token\/","title":{"rendered":"AS25289 Tachi: Sanry\u016btei Ry\u014dsanshi Masamine Saku Kore (Living National Treasure) Dated: August, Year of the Wood Rabbit (1975) (NBTHK Tokubetsu Hozon Token)"},"content":{"rendered":"

Ordering Number: AS25289<\/p>\n

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

Signature: Sanry\u016btei Ry\u014dsanshi Masamine Saku Kore (Living National Treasure)
\nDated: August, Year of the Wood Rabbit (1975)
\n\u5098\u7b20\u3000\u4e21\u5c71\u5b50\u6b63\u5cef\u4f5c\u4e4b(\u4eba\u9593\u56fd\u5b9d)
\n\u4e59\u536f\u5e74\u516b\u6708\u65e5<\/p>\n

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
\nThis work is ranked as Jyo Saku among the works of Masamine.
\nHabaki: Solid gold
\nWeight: 46 g, with a very small amount of silver used
\nBlade Length: 74.0 cm (29.13 in)
\nCurvature: 3.0 cm (1.18 in)
\nMekugi Hole: 1
\nWidth at Base (Motohaba): 3.23 cm (1.27 in)
\nWidth at Tip: 2.41 cm (0.95 in)
\nThickness of rim (Kasane): 0.76 cm (0.30 in)
\nSword Weight: 900 g
\nEra: Showa 50 (1975)
\nShape:Wide blade with thick kasane, bohi carved on both sides.
\nDeep curvature, with a relatively wide boshi.
\nJigane:Well-forged ko-itame hada forming a fine and refined steel surface.
\nHamon:Nie-based gunome-midare with variations in height.
\nThick nioiguchi with a midarekomi boshi.<\/p>\n

Features: Sumitani Masamine (real name: Yoichiro) was born in Taisho 10 (1921) in Matto City, Ishikawa Prefecture.
\nAfter graduating from Ritsumeikan University in 1941, he entered the university\u2019s Japanese sword forging research center and studied under Sakurai Masayuki.
\nHe began independent sword research in 1942.
\nAfter the war, he was officially recognized as a swordsmith in 1954.
\nIn 1956, he established his smithy \u201cSanry\u016btei\u201d in his hometown Matto, where this sword was also forged.
\nIn 1966, he became a mukansa swordsmith and a judge in exhibitions.
\nHe made sacred swords for the Ise Grand Shrine in 1964, 1966, 1969, and 1989.
\nHis work was closely connected with the imperial family, having crafted ceremonial swords for Emperor Akihito’s enthronement in 1990, and protective daggers for Princess Mako (1991), Crown Princess Masako (1993), and Princess Kako (1994).<\/p>\n

Aoi Art\u2019s Comment: From the first Sword Forging Techniques Exhibition in 1955, he submitted works continuously for 38 sessions.
\nHe pursued the Bizen tradition, perfected the so-called \u201cSumitani Ch\u014dji,\u201d and led the revival of ch\u014dji hamon in modern swordsmithing.
\nThis piece also exhibits a vigorous and dynamic hamon.
\nHe researched Kamakura-period steelmaking and produced his own steel, resulting in tasteful, classically styled jigane.
\nIn addition to the Bizen tradition, he also left excellent works in the Soshu tradition, and even produced kodogu such as small swords and tantos with mountings.
\nIn 1981, he became the fourth swordsmith to be designated a Living National Treasure.
\nHe passed away in December 1998.<\/p>\n

NBTHK Tokubetsu Hozon Token(*Scheduled to be issued soon)
\nAoiArt estimation paper: Whole Oshigata<\/p>\n

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

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

Ordering Number: AS25289 Tachi: in Shirasaya (NBTHK Tokubetsu Hozon Token) Signature: Sanry\u016btei Ry\u014dsanshi Masamine Saku Kore (Living National Treasure) Dated: August, Year of the Wood Rabbit (1975) \u5098\u7b20\u3000\u4e21\u5c71\u5b50\u6b63\u5cef\u4f5c\u4e4b(\u4eba\u9593\u56fd\u5b9d) \u4e59\u536f\u5e74\u516b\u6708\u65e5 We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku. This work is ranked as Jyo Saku among the […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-30100","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\/30100","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=30100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}