Tachi
no sign （O-suriage Mumei) Ryokai
(O-Wazamono)

Yamashiro province, late Kamakura period (Einin era), about 720 years ago

Ha-cho (Edge length) 76.5cm
Sori (Curvature) approx. 2.4cm
Moto-haba (width at Ha-machi) approx. 3.12cm
Saki-haba (width at Kissaki) approx. 1.76cm
Kasane (thickness) approx. 0.7cm
Engraving ; "Bo-hi, Kaki-toshi" on the both sides
Gold foil single Habaki, wooden case (Shirasaya)

JUYO (attributed to Ryokai)
but it has a scabbard writen by Honma Kunzan' s calligraphy "Rai Kunitoshi, Einin era, O-suriage mumei"