Jumyō

Sword ID 0000-0163  
Mei Mumei
Type Tanto Tsukurikomi Shinogi-zukuri
Nagasa (cm) 20.2 Sori (cm) 0.2
Moto-haba (cm) 2.3 Saki-haba (cm) 1.8
Moto-kasane (cm) 0.5 Saki-kasane (cm)
Mekugi 1 Nakago Ōsuriage

Attribution

Smith Jumyō School
Period Muromachi (1394-1570) Year
References[?]
Links
Location Private
Certificate Type Certificate ID  

This is a Jumyō wakizashi or katana, shortened to a tanto size in mid-late Edo. It could be one of those 'boy swords', especially looking at the way it's been mounted.