Thread: Unknown Jnat finisher, need info about the surface

Hi,

I have what I think is an old barber's hone from Japan. My question is, first of all, can anyone tell from the pics if it's legit? No stamps or anything exists anymore. Secondly, are those dark spots on the surface "yake"? Is there anything you can spot on the surface of the hone that should be worrying, when it comes to honing razors? I am not worried about the one at the top, naturally, that one won't get hit at all.

Attached a picture, wet and dry. If anyone can help, I can post more close-ups as well. The one here is the orange dot in the center-right section, as seen through a magnifying glass.

I have the hone with me, I should say.. so I can do some tests as well, if someone can provide guidance. It's a hard stone..I have 3 more jnats at home to compare and I'd say this is a level 5 (or close to it).

Many thanks in advance!