Slate backed German yellow razor stones?
In a Dictionary of Arts, Manufactures and Mines from 1867 the following entry is made in describing a German razor hone:
"The German razor hone has long been celebrated. It is obtained in the slate mountains in the neighborhood of Ratisbon, where it occurs in the form of a yellow vein running through the blue slate, varying in thickness from 1 to 18 inches. When quarried it is sawn into thin slabs, and these are generally cemented to slices of slate which serve as a support. Sometimes, however, the yellow and the blue slate are cut out naturally combined."
Does anyone have what they think is a coticule bonded to a BBW base, but the base doesn't look like BBW?
The description above doesn't IMO describe a Yellow Escher type stone.
I'm very intrigued by this.
Chris L