細節
An Osaka Katana
Edo period (second half 17th century), signed Tango [No] Kami Naomichi
Sugata [configuration]: Honzukuri, iori-mune, even curve, chu-gissaki
Kitae [forging pattern]: Close bright ko-itame with ji-nie Hamon [tempering pattern]: Rounded gunome choji, substantial ashi, yakidashi
Boshi [tip]: Suguha with ko-maru
Nakago [tang]: Ubu but slight adjustment to the kiri-jiri, one mekugi-ana, osujigai file marks
Habaki [collar]: Single gold-clad copper
Nagasa [length of blade]: 63.4cm
Koshirae [mounting]: Handachi mounting, the scabbard lacquer of green effect with dense aogai nashiji, all iron fittings russet migakiji with gilt bordering, the menuki of lightly-gilt "maru ni kuginuki" (circle and nail-puller) mon
Accompanied by a certificate of registration as a Tokubetsu hozon token (Sword especially worthy of preservation) no. 150663 issued by the Nihon Bijutsu Token Hozon Kyokai (Society for the Preservation of the Japanese Art Sword), 2005.8.17