The blade was polished.
Habaki : Copper plate single habaki.
Blade length : 37.3 cm or 14.68 inches.
Sori : 2.3 cm or 0.9 inches.
Width at the hamachi : 2.57 cm or 1.01 inches.
Kasane : 0.57 cm or 0.22 inches.
Era : Early Muromachi period.
Shape : The blade is rather small sori nice looking shape.
Jitetsu : Itame hada well grained with jinie attach and visible to see the texture.
Hamon : Niedeki gunome midair with rather thick nioikuchi with ash, sunagashi and kinsuji work.
Special feature : The blade looks like Sekisyu school Sadatsuna or
Because the Hamon is thick nioikuchi round shaped gunome midaire.
Boshi is deep nioikuchi round shape.
I think this Naginata looks like Sekisyu koto blade.
We recommend to submit the blade to NBTHK shinbsa.
Guarantee NBTHK hozon paper.
Aoi Art estimation paper : whole Oshigata.