This blade was in gunto mounts, remains of gold wash on copper habaki, silver foil layer over that.
Nagasa looks to have originally been at least 28".
Are we looking at Kanbun? i.e. relatively little sori.
Or if it was considerably longer previously, is the original sori harder to visualise?
Many thanks in advance for any advice, I will look to take better pics, this is a query to steer my research direction.
My initial impression is that this may be Koto, and is of good quality, but I don't trust my opinions yet, and cannot really justify them.
Jon B, no sloop