{"id":27614,"date":"2025-07-19T17:13:36","date_gmt":"2025-07-19T08:13:36","guid":{"rendered":"https:\/\/sword-auction.com\/?post_type=product&p=27614"},"modified":"2025-07-27T02:37:17","modified_gmt":"2025-07-26T17:37:17","slug":"as25342-katana-mumei-unsigned-attributed-to-ko-kongo-byoe-nbthk-tokubetsu-hozon-token%ef%bc%89","status":"publish","type":"product","link":"https:\/\/sword-auction.com\/en\/product\/27614\/as25342-katana-mumei-unsigned-attributed-to-ko-kongo-byoe-nbthk-tokubetsu-hozon-token%ef%bc%89\/","title":{"rendered":"AS25342 Katana: Mumei (Unsigned, attributed to Ko-Kongo Byoe) (NBTHK Tokubetsu Hozon Token\uff09"},"content":{"rendered":"

Katana in Shirasaya (NBTHK Tokubetsu Hozon Token\uff09<\/p>\n

Signature: Mumei (Unsigned, attributed to Ko-Kongo Byoe)
\n\u7121\u9298(\u53e4\u91d1\u525b\u5175\u885b)<\/p>\n

We divide works into Saijyo Saku, Jyojyo Saku, Jyo Saku, and Regular Saku.
\nThis piece is ranked as Jyojyo Saku for Mumei (Ko-Kongo Byoe).
\nHabaki: Gold Foil, Single-layered
\nBlade Length: 67.0 cm (26.38 in)
\nCurvature: 1.6 cm (0.63 in)
\nMekugi Holes: 2
\nWidth at Base (Motohaba): 2.86 cm (1.13 in)
\nWidth at Tip (Sakihaba): 2.22 cm (0.87 in)
\nThickness (Kasane): 0.58 cm (0.23 in)
\nSword Weight: 655 grams (1.44 lbs)
\nEra: Kamakura to Nanbokucho period (Approx. 1342\u20131330, over 682 years ago)
\nShape:This is a suriage (shortened) Mumei piece with a deep curvature, characteristic of late Kamakura to Nanbokucho period swords. The tip (kissaki) is slightly extended.
\nJigane (Steel):Well-forged ko-itame hada with visible utsuri (a faint reflection pattern).
\nHamon (Temper Line):The hamon features ko-gunome midare with small ashi (feet), predominantly suguha with ko-gunome midare elements.<\/p>\n

Aoi Art\u2019s Comment:Ko-Kongo Byoe refers to swordsmiths like Moritsuna, Morisada, and Yoshimori.
\nThis piece, attributed to Ko-Kongo Byoe, is from the Kamakura period.
\nIt features a high shinogi-ji, a suguha-style hamon, and a boshi that rounds and returns gracefully.
\nThe blade exhibits a faint whitish utsuri pattern.
\nThe deep curvature, mixed itame and mokume hada with occasional masame grain, and overall workmanship are hallmarks of this era.<\/p>\n

NBTHK Tokubetsu Hozon Token
\nAoi Art Estimation Paper
\nWhole oshigata.
\n*Please note: The price does not include shipping fees.<\/p>\n

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Katana in Shirasaya (NBTHK Tokubetsu Hozon Token\uff09 Signature: Mumei (Unsigned, attributed to Ko-Kongo Byoe) \u7121\u9298(\u53e4\u91d1\u525b\u5175\u885b) We divide works into Saijyo Saku, Jyojyo Saku, Jyo Saku, and Regular Saku. This piece is ranked as Jyojyo Saku for Mumei (Ko-Kongo Byoe). Habaki: Gold Foil, Single-layered Blade Length: 67.0 cm (26.38 in) Curvature: 1.6 cm (0.63 in) Mekugi […]\n","protected":false},"featured_media":0,"template":"","meta":[],"class_list":["post-27614","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\/27614","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=27614"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}