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Spots on a Matte proof Lincoln

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We have had some mixed success in spots such as these on this Liincoln Cent. Copper is one of the more reactive metals to the environment of any typically used for coins. While we may likely not be able to remove the spots completely, we can take steps to reduce their appearance and make them less likely to become worse in the future.

 

Chris, NCS

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Thanks Chris. I figured it was worth trying to slow down the spots. I'll be sending in a group once I get it together. Hate to let this one go without trying to help it.

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