Famous Ohira Uchigomori Koppa sword Grade.
Very old stock Uchigomori, without any toxic inclusions at all, make super nice and hazy finish.
Sutch stones is very rare now and find them so clean is almost impossible.
Many of them come with many blackness or rust colors witch is not so good as it tend to be to hard ! And can scratch
This one however is super clean Gray color with a lot of range in it !
Max Size: 160mm 110mm 25mm