I'll tease you a bit so be patient :D
I have in my hands a tsuba of a friend of mine, as I will be back in Japan in two weeks and I want to take it for a shinsa.
The craftsmanship is very tidy, looks a quite late work. No sign of steel features such as lamination or tekkotsu, but the patina looks very good and appropriate, a lovely dark chocolate colour difficult to reproduce with a scanner, at least mine.. Shakudo liners on the hitsu. Design seems to me a wheel and a family mon.
Here it is, omote in colour:
As I said in the title, this tsuba has something very unusual, at least to me. Something I have never seen before, but I am going to tease you a bit a hint is on all the pictures BTW, good eyes will see it.
Let's see if some of you knows this design/school at first sight before. It's signed, in omote, masa.. something 正..恒 but I am not sure of the second kanji, I need to catch a good shot to show you. It's signed in katakiribori.
Here are a coulpe of "bookesque" BW pictures.
Diameter 78 mm.
Lorenzo