This knife and tool sharpening Whetstone /oil stone is model No. 198 made by the Carborundum Company of Pennsylvania. Sold in as found condition with wear to both ends. It's original shape was more oblong, the use over the years has worn it. Measures 9 1/2" x 1 1/2" at its widest. This is a very cool item. W10
Related Vintage Whetstone, oil stone The Carborundum Company No. 198 oblong knife hone, well used and worn
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