Tanto: Mumei(Shimada Sukemune)
Tanto in Shirasaya(NBTHK Hozon Paper)
Signature : Mumei(Shimada Sukemune)
Also old Origami : Yamato Kuni Tegai Kanezane.
The blade was polished.
Habaki : Silver single habaki.
Blade length : 27.8 cm or 10.94 inches.
Sori : No sori
Mekugi : 2
Width at the hamachi : 2.59 cm or 1.01 inches.
Kasane : 0.53 cm or 0.20 inches.
Era : Late Muromachi period.1450.
Shape : The blade is regular style.
Jitetsu : Koitame had and mokumehada mixed
with jinie attach and good well grained Jigaane.
Hamon : Koniedeki gunome midare notare style with thivk nioikuchi.
Boshi is round shape with thick nioikuchi yakisage style.
Special feature : In the past, the blade was attributed as Yamato Tegai Kanezane
but At NBTHK shins, the blade was judged as Shimada Sukemune.
The shimada sukemune was working at late muromachi from 1450 to
late Muromachi period by several generations.
It is very hard to distinguish which era belonged to.
I think this sword is very nice Jigane and soft feeling Hamon,
the blade must be first generation Sukemune.
The fantastic Jigane and nice wavy temper line are received good impression a lot.
NBTHK Hozon Paper
Also old Origami:Yamato Kuni Tegai Kanezane.
Aoi Art estimatin paper : whole Oshigata.