Canada or Arkansas Vintage Oilstone- 6 3/4" x2" - Straight Razor & Tool Sharpening Hone
This vintage light gray sharpening stone for your consideration measures 6 3/4 in. long x 2 in wide and 7/8 in. thick. It has been thoroughly cleaned and one side of this stone has been lapped flat to a very smooth surface, the edges have been chamfered and it is ready to use. I have not tested it, but it is a hard stone that certainly seems to be novaculite. It is a very even gray which leads me to believe it is possibly a Canada (not Magog) Oilstone, or perhaps an Arkansas hone (I will admit to being no expert on Arkansas stones).
Note, the last photo was taken with the honing surface wet.