I have bought a little sword. The suriage was so roughly done that I just had to make an offer.
Here you have some measurement and my observations:
2 menugi ana, 58 mm apart.
Nagasa 493 mm.
Nagago 125 mm.
Tori-sori 8.4 mm. (before suriage was her saki-sori?)
Motokasane 6.7 mm.
Sakikasane 4.8 mm.
Motohaba 28.2 mm.
Sakihaba 20.6 mm.
1/3 of the blade is like someone had tried to make madoake.
No clear visual about the hada. Hamon is mix of suguha / notare.
Patches of spider rust colour blackish.
Couple nicks in ha and mune.
She might have been a "warhorse" that was cut in battlefield due chiping near habaki.
I suspect that it was cut at least 80mm and quite crudely IMHO.
I like her a lot, she is sturdy little sword.
No idea about period or school, please feel free to comment.
Thank you and sorry about the quality of my photos.