The blade was polished.
habaki: copper single habaki.
Blade length : 73.7 cm or 29.01 inches.
Sori : 1.5 cm or 0.59 inches.
Mekugi : 1
Width at the hamachi : 3.15 cm or 1.24 inches.
Width at the Kissaki : 1.75 cm or 0.68 inches.
Kasane : 0.82 cm or 0.32 inches.
Era : Probably early Muromachi period.
Shape : The blade is Koshizori style with deep sori nice looking shape.
Jitetsu :Itame had and ooitame had mokume mixed with jinie attach.
some parts have small kiss and flow but not serious.
Hamon : Niedeki gunome midair with thick nioikuchi and hard to see the temper line because the blade is tired.
Special feature : From the Jigane and Hamon, it looks Kobizen or Ko hooki or Hojyu blade.
Anyway the blade is old and hope to buy Iai practice or reference sword.