細節
An Ashu Tachi
Signed Yasunaga, Muromachi Period (Early 16th Century)
Blade honzukuri, toriizori, iori-mune, chu-kissaki, forging pattern itame with masame, dark hada with midare utsuri, tempered edge suguha of konie with ashi, kinsuji, ko-maru boshi, tang suriage, two holes, katte-sagari, double copper gilt habaki, nagasa 78.8cm., sori 1.7cm., motohaba 3cm., sakihaba 1.8cm., in shirasaya