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<p>[QUOTE=&quot;WingedLiberty, post: 1232772, member: 26030&quot;]Thanks <b>Coppermania</b>, but don&#039;t push me out of the nest!!!&nbsp; Chirp Chirp.&nbsp; </p><p><br /></p><p><b>Medoraman</b>, The 10% copper is very reactive and can tone.&nbsp; I am not sure if the discoloration we see on old gold is actually JUST the copper toning, or if gold itself can tone.&nbsp; Maybe we need a chemistry (metals) expert on here!&nbsp; I have my doubts that the color is just laying on the coin, like someone dumping a bottle of food coloring on a coin.&nbsp; I would think it&#039;s unlikely that NGC would let something like that slide through, but who knows.&nbsp;&nbsp; So you think that if someone just rinsed this coin, the color would wash off?&nbsp;&nbsp; My gut feeling is the chemicals in the leather reacted with the copper in the coin; the same way chemicals (sulfur) in old albums and mint set cardboard and tissue paper reacted with coins, but I really don&#039;t know the ultimate answer to your question.</p><p><br /></p><p>I totally agree with <b>Collector 1966</b> ... I never think I know enough and I learn TONS from all the experts on this site (and I&#039;ve been an off and on collector for 44 years!).&nbsp; I REALLY APPRECIATE all the great comments and feedback.&nbsp; Extremely helpful and insightful.&nbsp; You guys help me learn and maybe (by osmosis) all the questions and answers generated help others learn as well!&nbsp; The other thing I find helpful by this is by getting a gauge of what other people like (what their opinions are), I get a better feel for what might be easier to sell (should I ever decide to sell anything down the road).[/QUOTE]</p><p><br /></p>

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