Yamashiro area kamisori toishi #306

From one of the Yamashiro area mines, most likely Shobu or another Umegahata
mine like Ozuku.

A very hard stone in the 5+++ range, also super fine, I did hone up a razor in the
central area where the surface is lighter and the resulting edge was excellent and
top notch. This hone has a microns thin oxidized skin layer on the top from sitting
untouched or used in over 60 years, this layer will come up with the first lapping.

I have not see these wholesaler stamps before but they read at the top left "Sho
Hon Yama Awasedo" or True Original Mountain Sharpening Stone,  and below
"Betsu Jo Hin" finest quality. These first stamps are generic stamps, the spade
shaped stamp is the wholesalers personal stamp from the 1950s and probably from
the 1940s or earlier.
I have shaved off this stone and achieved a very fine shaveable edge after just a
few minutes with
TheAxMethod. This stone is can be used as a final finishing stone
or polishing stone.

All of my stones come fully lapped with beveled edges unless otherwise noted.

This stone and the other kamisori toishi on my site are from a world class private
collection of over 400 pieces assembled in Japan over the past years in the area
around Toyama by a collector of shaving implements. I was lucky enough to
purchase total collection over the last 2 years. Many of the hones were actually
used by barbers, some dating to the 1920s or earlier, while others were simply
prepared by the miners as razor hones as evidenced by the size and fine quality of
the stones grit composition.
Yamashiro Area  KAMISORI TOISHI #306
TheJapanStone
Hardness
5++
Grit Fineness
5+
Speed/Cutting
4 to 5+
with
slurry
Size 182-62-16
in mm
Price $290 SOLD