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<p>[QUOTE=&quot;medoraman, post: 996111, member: 26302&quot;]Doug is right as usual. Remember that toning when light can be pretty, it is always a chemical reaction that is physically degrading your coin. A coin that black has already been damaged on the surface, and if it doesn&#039;t stop will eat further. Did you store this will moisture absorber in the safe? Was there any sulphur source anywhere?</p><p><br /></p><p>If it helps, I always store some bright, shiny silver and copper coins uncovered in my safe. My theory is they will &quot;take the hit&quot; and tone before any of my protected coins would, along with moisture absorber. Not sure if it works, but I put some more shiny ones in there every few years since the others tone. I just use modern cents and silver rounds, that way I do not care if they tone or not.[/QUOTE]</p><p><br /></p>

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