Search:

Maybe so Ron, but we are dealing with poor quality photos that are obviously not to scale.

Here is a picture of a # 118 in the Library;

Carborundum Hones - Straight Razor Place Library

No rock expert here, but based on those 2 poor photographs alone, I side with JeffR on this one, with one exception; I believe it to be a single grit Carborundum (silicon carbide) # 118. The 118 is a...