Hi!
This is a sunnobi-tanto I got awhile ago. Comes with a really nice akuchi koshirae.
Mumei
Nagasa: 33,7 cm
Sori: 7 mm
Hamon: chu-suguha, nioi deki
Hi: Bo-bi with soe-bi
Yasurime: Kiri
Wow, I hope I got those names right
After I made some research in my books and on the internet, I start to think it´s a bit older than I first guessed.
Perhaps late Nanbokucho or early Muromachi. I base this on the narrow suguha, the hi and the sori.
Its been cut down, at least a couple of centimeters, perhaps more.
Please look at the pics and see if You based on this can help.
Be gentle...
Thanks!
Jan