This one is very old Ohira Uchigomori and it is Tested, Crazy fast for Uchigomori and make super nice finish
line at the top can be digged out but I used and tested stone with it without problems
Even so it is on harder side it is Super easy to use as it is so fast
It is bought very very long time by Kato him self
Pre owned by Mr. Kiyoshi Kato
I was very lucky to buy these stones from Kato, that he and his father have collected !
They are crazy old and have been collected by Kato father and him self to be used on swords and knives
I got total 6 Stones and one I will Keep for my self :)
Collector Grade !
size: 210mm 70mm 20mm