{"id":28486,"date":"2025-09-27T11:00:43","date_gmt":"2025-09-27T02:00:43","guid":{"rendered":"https:\/\/sword-auction.com\/product\/28486\/as25370-%e5%a4%aa%e5%88%80-%e5%82%99%e5%b7%9e%e9%95%b7%e8%88%b9%e5%8f%8b%e8%b2%9e%e5%b0%8f%e5%8f%8d%e3%82%8a%e7%ac%ac48%e5%9b%9e%e9%87%8d%e8%a6%81%e5%88%80%e5%89%a3\/"},"modified":"2025-09-27T11:09:36","modified_gmt":"2025-09-27T02:09:36","slug":"as25370-%e5%a4%aa%e5%88%80-%e5%82%99%e5%b7%9e%e9%95%b7%e8%88%b9%e5%8f%8b%e8%b2%9e%e5%b0%8f%e5%8f%8d%e3%82%8a%e7%ac%ac48%e5%9b%9e%e9%87%8d%e8%a6%81%e5%88%80%e5%89%a3","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/28486\/as25370-%e5%a4%aa%e5%88%80-%e5%82%99%e5%b7%9e%e9%95%b7%e8%88%b9%e5%8f%8b%e8%b2%9e%e5%b0%8f%e5%8f%8d%e3%82%8a%e7%ac%ac48%e5%9b%9e%e9%87%8d%e8%a6%81%e5%88%80%e5%89%a3\/","title":{"rendered":"AS25370 Tachi:Bish\u016b Osafune Tomosada (Ko-zori) (48th NBTHK Juyo Token)"},"content":{"rendered":"

Ordering number:AS25370<\/p>\n

Tachi: in Shirasaya, with Koshirae (48th NBTHK Juyo Token)<\/p>\n

Signature:\u3000Bish\u016b Osafune Tomosada (Ko-zori)
\n\u5099\u5dde\u9577\u8239\u53cb\u8c9e(\u5c0f\u53cd\u308a)<\/p>\n

Sayagaki: Bish\u016b Osafune Tomosada, Ko-zori-mono
\nBlade length: 2 shaku 1 sun 9 bu (66.5 cm)
\nWritten by Dr. Kunzan (with ka\u014d)<\/p>\n

We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku.
\nThis piece is ranked as Saijyo Saku (highest rank) among the works of Bish\u016b Osafune Tomosada.
\nHabaki: Single gold-covered habaki
\nBlade Length: 66.5 cm (26.18 in)
\nCurvature: 2.91 cm (1.15 in)
\nMekugi Hole: 4
\nWidth at Base (Motohaba): 2.91 cm (1.15 in)
\nWidth at Tip (Sakihaba): 1.89 cm (0.74 in)
\nThickness of rim (Kasane): 0.79 cm (0.31 in)
\nSword Weight: 655 g
\nEra: Nanbokuch\u014d period
\nShape: The blade has standard width, thick kasane, and deep curvature.
\nIt features a b\u014dhi (full-length groove) and an extended kissaki, showing a refined and elegant shape.
\nJigane: Itame mixed with mokume, forming a well-forged and densely packed texture.
\nA faint utsuri (shadow pattern) appears.
\nHamon: Nioi-based gunome-midare mixed with angular elements.
\nFeatures include ko-ashi, ha, ko-nie, and sunagashi.
\nThe boshi turns back sharply with a pointed tip.<\/p>\n

Features: According to the book “Kokin Kaji Shiko”, Tomosada was active around the \u014cei era in Bizen Osafune.
\nHowever, based on the workmanship and the style of the signature, this piece is presumed to be from the late Nanbokuch\u014d period.
\nThis tachi features a flowing itame and mokume jigane with visible hada and fine ji-nie.
\nChikei-like small patterns appear, along with ko-ashi, ha, and fine nie, indicating high-quality workmanship.
\nThe signature is also slightly small in size, further representing Tomosada\u2019s style.
\nNo other known examples of signed Tomosada exist, making this a rare and important reference for his work.
\nTomosada belonged to the Ko-zori school of Bizen and is known for outstanding craftsmanship.
\nThe hamon shows gentle gunome-midare, a visible utsuri, and a deep curvature, forming an elegant blade.
\nThis sword also comes with a sayagaki by Dr. Kunzan.<\/p>\n

Koshirae:
\nTsuba: Iron tsuba with openwork (sukashi) design.
\nIron bones (tekotsu) are visible on the rim.
\nFuchi: Shakudo ground carved with waves, shells, and crabs, with gold inlay.
\nKashira: Made of horn.
\nSaya: Glossy black lacquered saya (kuro ro-iro saya).
\nMenuki: Carved with animal motifs.
\nK\u014dgai: Shakudo nanako ground with rinp\u014d (sacred wheel) motif.
\nKozuka: Carved with plant motifs and decorated with gold inlay.
\nIncludes a small utility knife with a bamboo handle.<\/p>\n

Aoi Art\u2019s Comment: This is a superbly made Tachi by Bish\u016b Osafune Tomosada, with clearly visible utsuri.
\nThe well-forged jigane is particularly beautiful, and the koshirae is also exceptional.
\nHighly recommended.<\/p>\n

48th NBTHK Juyo Token (Reissued Certificate)
\nAoi Art estimation paper with Whole Oshigata <\/p>\n

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

Ordering number:AS25370 Tachi: in Shirasaya, with Koshirae (48th NBTHK Juyo Token) Signature:\u3000Bish\u016b Osafune Tomosada (Ko-zori) \u5099\u5dde\u9577\u8239\u53cb\u8c9e(\u5c0f\u53cd\u308a) Sayagaki: Bish\u016b Osafune Tomosada, Ko-zori-mono Blade length: 2 shaku 1 sun 9 bu (66.5 cm) Written by Dr. Kunzan (with ka\u014d) We divide 4 sections for each sword as Saijyo Saku, Jyojyo Saku, Jyo Saku and Regular Saku. This […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-28486","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\/28486","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=28486"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}