Search:

To be honest with you that hone was originaly made for one of the directors for knife sharpening and then I have inherited it through his daughter.
I have flattened it but had never chance to put...

Reason why I have asked is that there are sellers of Jaka who use material of dubious origin.
If it is from Radek then it is the original material. I know that for sure as we were together in the...

Sorry Vasilis, not original Jaka, Where did you get your stone?

The article exists as I did English translation of it for Henk. When time will be right it will come up.

The size is irrelevant as the one shown was made especially for one of the directors of the company who used to own the mine and manufacturing of the hone during comunist times in Czechoslovakia. The...

And one more
235484

Slate hone in past mined in Walachia which is now part of Czech Republic. One of the colleagues from here Radyx still works on thorough research of this hone. There was a big article made for Henk...

I am not sure about the WOA.
To me it looks simillar to Jaka hone, slatey, that whiter band on side and gives decent edge.