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Can muted red copper surfaces be restored?

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I have two MS-65 Red Indian cents, one PCGS and the other NGC. The reverse of both coins has a "muted" quality that appears to have developed in the holder. Can NCS restore, or at least improve the red quality of copper surfaces? I realize that you would need to evalute the individual coins, but this is a general question. I guess what I am really asking is if it is worth submitting them to NCS. This is not a spot, dirt or corrosion issue. It is a toning issue.




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As a general rule, NCS does not conserve Red copper coins. There are expceptions of course. More modern red copper coins are quite often conserved and come out spectacular and sometimes older red copper coins such as yours are conserved and do come out.


Chris, NCS

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