The blade was polished.
Blade length : 58.7 cm or 23.11 inches.
Sori : 2.0 cm or 0.78 inches.
Mekugi : 2
Width at the hamachi : 2.78 cm or 1.09 inches.
Width at the Kissaki : 1.77 cm or 0.69 inches.
Kasane : 0.76 cm or 0.29 inches.
Weight : 600 gram.
Era : Late Muromachi period.
Shape : The blade is regular size with deep sori elegant shape.
Jitetsu : Itame had masanagare with jinie attach and visible to see the texture.
Hamon : Niedeki suguha with rather deep nioikuchi nd double hamon.
Boshi is round shape brush up.
Special feature : Naminohira Shigenobu was a son of the Naminohira Shigezumi who was working at Cyoroku era.
The blade is feature of Namonohira which is soft feeling texture.
NBTHK Hozon Paper
Aoi Art estimation paper : whole Oshigata.
