Found this hone at a market last weekend.
The Carborundum Razor hone
Made by The Carborundum Company
Size 4” x 11/2” x ½”
Lightly used.
Thought it was interesting.
Did some research on the net & came up with this
In 1894 Edward G. Acheson (1856–1931) established the Carborundum Company in Monongahela City, Pennsylvania, to produce grinding wheels, whet stones, knife sharpeners, and powdered abrasives. In 1895 Acheson's electrochemical company was among the first to come to Niagara Falls.
Picture http://img523.imageshack.us/img523/2197/hone1ga2.jpg
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