Ashu Sukeyoshi 阿洲祐芳 KATANA, Shinsengumi 新選組, Bakumatsu Period

This sword was made around 1860, towards the end of the Edo period.
This swordsmith is famous for the Katana used by Kondo Isami, who served as captain of the Shinsengumi.

NBTHK Shinsa paper

Signature : Mumei (Ashu Sukeyoshi)
Nagasa : 612mm (24.09 in.) 
Sori : 6mm (0.24 in.) 
Total length : 900mm (35.43 in.) 
Motohaba : 26mm (1.02 in.) 
Sakihaba : 17.7mm (0.70 in.) 
Motokasane : 6.5mm (0.26 in.) 
Sakikasane : 5mm (0.20 in.) 
Blade Weight : 497g
Total Weight : 807g