I had this 1907 barber quarter listed that it had dark toning but someone had sent me a message saying it was severe corrosion. It only had a few...
I have noted what seems to be a recent trend in the (loosening of standards of) slabbing clearly problem copper coins/tokens with corrosion or...
Have you ever used the product called Metal De-Corroder? It's made by same reputable company that makes Renaissance Wax. How about Pre-Lim? If you...
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