The blade was polished.
Habaki : Gold foiled single habaki.
Blade length : 63.6 cm or 25.03 inches.
Sori : 1.8 cm or 0.70 inches.
Mekugi : 2
Width at the hamachi : 3.32 cm or 1.30 inches.
Width at the Kissaki : 2.36 cm or 0.93 inches.
Kasane : 0.79 cm or 0.31 inches.
Era : Edo period Genroku era.
Shape : The blade is wide(3.32cm) and thick with deep sori and long kissaki nice looking shape.
Jitetsu : Koitame hada well grained with Jinie attach like Hizen blade.
Hamon : Niedeki gunome midair with thick nioikuchi and sunaagshi, kinsuji work.
Special feature : Naminohira Yasukuni was working at Satsuma province who was called Hashimoto Shirobei and later on he changed his name to Saburo bei.
He succeeded 58 generation Naminohira sword maker's family.
Ippei Yasuyo(Ichinohira Yasuyo) was a student of the Yasukuni.
This blade is very thick nioikuchi like Satsuma Motohira.
The blade is healthy without Kizu and flow.
The blade is NBTHK Tokubetsu hozon and gorgeous sword.
NBTHK Tokubetsu Hozon paper.
Aoi Art estimation paper : whole Oshigata.
