In the Red Book they talk about 'satin finish' collector sets. How you can see the difference with the 'standard' coins? I have the D and P from the uncirculated coinset and S from the proofset. Is there another special satin finish set?
Your uncirculated 2009 P and D cents are satin finish since all 2005-2010 uncirculated mint set coins had a satin finish. They are also 95% copper, as opposed to copper plated zinc use for circulation.
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