Attributed to Jitsua Kamakura period (1185-1333), 14th century Sugata (configuration): honzukuri, iorimune, koshizori, ko-gissaki Kitae (forging pattern): flowing itame Hamon (tempering pattern): narrow suguha based in nie Boshi (tip): o-maru Horimono (carving): bohi ni tsurehi on both sides Nakago (tang): o-suriage with kiri file marks, and four holes Habaki (collar): one-piece, gold-foil Nagasa (length from tip to beginning of tang): 27 3/16in (69cm) Motohaba (width at start of tempered edge): 1 1/8in (2.9cm) Sakihaba (width before tip): 11/16in (1.7cm) In a shirasaya (wood storage scabbard) With kantei certificate no. 3366 issued by the Juho Token Kenkyukai, dated February 2, 2004