Katana in Shirasaya (Shibata estimation paper)
Signature : Mumei (Akama Tsunanobu)
The blade was polished.
Blade length : 69 cm or 27.16 inches.
Sori : 2 cm or 0.78 inches.
Mekugi : 2
Width at the hamachi : 3.2 cm or 1.25 inches.
Width at the Kissaki : 2.49 cm or 0.98 inches.
Kasane : 0.7 cm or 0.27 inches.
Era : Late Edo period.
Shape : Wide and thick blade with Sori. Long Kissaki.
Jitetsu : Ko-Itame Hada well grained with Jinie attached.
This is Muji Fu, beautiful Jigane.
Hamon : Nioi deki, Gunome Midare and Choji Midare.
Special feature : Akama Tsunanobu’ real name is Kisaburo.
He studied under Kato Tsunahide with Chounsai Tsunatoshi.
He is good at Doranba. In some cases, he made this kind of Nioideki
Gunome and Choji Midare blade.
On the Saya, there is Sayagaki by Shibata.
Shibata estimation paper
Aoi Art estimation paper : whole Oshigata.