More research needed, I think this could be a Koto Mino sword based on steel and Hamon
Period – Koto?
Paper – No Papers
Mei – Mumei
Nagasa – 50.3 cm
Sugata – Shinogi-zukuri
Sori – 1.5 cm
Kissaki – Chu
Mune – Iori
Kasane – 0.7 cm
Mihaba – 3 cm
Nakago – Ubu – Standard with kuri-jiri
Mekugi Anna – 1
Yasurime – Not Seen
Hamon – Nioi-deki
Boshi – Ko-maru
Hada – Itame
Price – SOLD