Bruno,

I think you are correct. One proviso.....

I have assumed that Timber Tools have purchased their stock from MST in Germany. May be I have jumped to conclusions and maybe I am wrong. It just seems the stone sizes are the same and the cardboard box they come in look identical apart from the branding on the front.

But don't blame MST. MST describe the stone that I purchased as "0riginal-Thüringer Wasserabziehstein". They do not use the word Escher anywhere in their descriptions.

The only point I would make is that mine is a very fine and a really good finishing hone.

In the past I have used either a Yellow Belgian Coticule or a Spyderco Ultra fine or the Thiers Issard paste to finish my razors. I have used the MST hone for five months now and I find it works much better.