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<p>[QUOTE=&quot;desertgem, post: 1413338, member: 15199&quot;]I have coin references rather far back. Looking at some 1960 era Numismatic Scrapbook issues, I find Deller&#039;s Darkener ( still advertised today ) with their sulfur compound, compounds to clean all sorts of coins,guaranteed to cause no damage even to proofs (no longer sold to my knowledge) and one ad from a copper plating firm offering to plate your 1943 Lincolns so you could have a rare copper one ( or a PDS set) also. They escaped problems by making you send in your own cents, so if problems came, you were the originator. How many threads have we had where the owner ( some with long membership) explained that theirs must be real, or not AT, or not darkened after cleaning, as the great grandfather had it in his collection.&nbsp; The intent today may be correct, to not sell cleaned coins or artificially toned coin or plated coins, but my personal feeling is that it is not good for numismatics, But each to their own.[/QUOTE]</p><p><br /></p>

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