Attributed to Kanesue Kamakura period (1185-1333), circa 1210 Sugata (configuration): honzukuri, iorimune, koshizori, ko-gissaki Kitae (forging pattern): ko-itame Hamon (tempering pattern): suguha mixed with ko-choji in nie with ashi Boshi (tip): ko-maru Nakago (tang): o-suriage with two holes and signed Kanesue Habaki (collar): one-piece gold Nagasa (length from tip to beginning of tang): 26 5/8in (67.6cm) Motohaba (width at start of tempered edge): 1 3/16in (3cm) Sakihaba (width before tip): 13/16in (2.1cm) In a shirasaya (wood storage scabbard)