Finish side of both, Petrified wood on left. The wood version was severely prone to warping. I suspect it was because it was a natural product (wood) glued to a synthetic. Cold water only helped to keep it flat when honing.
On the left is the coarse side of the Hickory version, very fine for a coarse side. It would also explain why the embossed label is on the coarse side which was not common.
On the left is the coarse side of the Hickory version, very fine for a coarse side. It would also explain why the embossed label is on the coarse side which was not common.
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