細節
A Bizen katana
Muromachi period (16th century), signed Bizen Kuni [No] Ju Osafune Katsu[mitsu]
Sugata: [configuration]: Even width hon-zukuri, iori-mune, somewhat high shinogi, fumbari with sakizori curve, chu-gissaki
Kitae: [forging pattern]: Fine ko-itame with ji-nie overall, ji-utsuri, and much ara-nie
Hamon [tempering pattern]: Midareba with large and violent variations particularly in the lower part of the blade, sunagashi, irregular niju-ba, much tobi-yaki, deep return with mune-yaki having many kinsuji along much of the blade and areas of very large nie
Boshi [tip]: Ichimai boshi with kinsuji on omote
Nakago [tang]: Suriage with three mekugi-ana, the lower of which filled with lead, katte-sagari file marks, kuri-jiri
Habaki [collar]: Single silver with incised inscription ichigo mushi (no slightest trace of self)
Nagasa [length of blade]: 62.1cm
Koshirae [mounting]: Uchigatana mounting with black lacquered scabbard, copper nanako kojiri, mokko yamagane tsuba with large wavy-edged hitsuana, two coiled dragon roundels on each side, the whole sukuidashi-bori, iron fuchigashira with carved bands of nanako and gold ito zogan linked-key design, shakudo menuki of sets of three triple quadrant mon
Accompanied by a certificate of registration as a Hozon token (Sword worthy of preservation) no. 379343 issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword), 2008.3.19
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