I am interested in this NOS Jnat. The seller says that it appears to be very hard. Can anyone ID this stone? I would greatly appreciate it. It is listed for $180.
Any other pics?
Sent from my KB2007 using Tapatalk
Google: 正本山鳴瀧合砥
Not sure if the translation is right: Masamotoyama Narutaki Natural whetstone
should be ~60USD.