I was recently checking out an old shaving kit of my late Granddad's.
It would have been in use around the turn of the century, I mean 1900
or a little before! The stone in it has me curious.
It's dark gray, 1-13/16" wide, 5" long and 7/16" thick. It has the
label or caption "The NAC" stamped or cut into one end.
It put an edge on a Stanley like anything you'd want, _sharp_,
I was hoping it would be black Arkansas, but the words cut in it
suggest otherwise, don't they?
Anyway I might test it, like for hardness etc?