From Kiyoshi Kato Koma Nagura (a2949)
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 :)
This one is very old Koma Nagura at 2160 g Very big and Crazy clean
It is bought very very long time by Kato Father
Impossible to get that Large pure Koma Nagura now
Collector Grade !
size: 180mm 105mm 60mm
wight 2160 g