I thought that this was a new slant on "Ceramics in the Workshop", until Neil said that he would look into it.
Reading the Tea Leaves, yet another skill displayed on the Forum?
A long time ago, I had a mug with glazed greasy handprints on it and a nut and bolt inside, but it was withdrawn from service as unhygenic.
Howard
Edited By Howard Lewis on 03/03/2016 16:27:59