Japanese Natural Whetstone

Description

純三河白名倉
A full set of Vintage 1960's Asano Jun Mikawa Shiro Nagura
There are 4 stones in the set and they are Asano stamped. Koma Nagura is in this set as well.
The different stones are used in a progression until the desired level of sharpness is achieved. (Used together with a larger base stone. These are used to make a slurry to sharpen razors). The top and sides are coated with Cashew Lacquer to protect stamps.
Stones came from Keith at Tomonagura.com on Etsy store in 2016.
Botan: 71 g          (Betsu Jou)
Tenjyou: 64 g      (Tokkyu)
Mejiro: 73 g         (Tokkyu)
Koma: 65 g          (Joukyu)