Wakizashi in Shirasaya (NBTHK Tokubetsu Kicho Paper)
Signature : Mumei (Fujishima Tomoshige)
The blade was polished.
Blade length : 59.4 cm or 23.38 inches.
Sori : 2.2 cm or 0.87 inches.
Mekugi : 2
Width at the hamachi : 2.86 cm or 1.12 inches.
Width at the Kissaki : 1.86 cm or 0.73 inches.
Kasane : 0.64 cm or 0.25 inches.
Era :Edo period.
Shape : It is regular width that reminds Naginata Naoshi katana
Jitetsu : Koitame hada well grained with jinie attached. It is clear jitetsu.
Hamon : Nie Deki gunome midare with hachu sunagashi majiri. It is hakikake style.
Special feature : NBTHK says this blade is Fujishima Tomoshige and Nissyu sensei said this blade is Sukemitsu.
It is Mid Muromachi Period piece.
I think the blade looks like Bizen school.
Anyway the sword has passed more than 540 years.Bizen Koku Osafune Sukemitsu.
NBTHK Tokubetsu Kicho Paper
Aoi Art estimation paper : whole Oshigata.