RPM or DDO?

Discussion in 'Error Coins' started by Patrick M, Feb 7, 2017.

  1. Patrick M

    Patrick M Razor edge MD

    It looks like a D oxidation underneath. What do you guys think?
     

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    Patrick M, Feb 7, 2017
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  3. Pickin and Grinin

    Pickin and Grinin Well-Known Member

    This happens when there is either a mechanical issue, or, when the copper plating is thin. By the way, it happens most on the MM
     
    Pickin and Grinin, Feb 8, 2017
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  4. paddyman98

    paddyman98 I'm a professional expert in specializing! Supporter

    Find a nice damp area. Drop some water on the surface. The exposed Zinc underneath the Copper Plating will start to Rot. As stated.. plating issue
    I want to share this webpage with you - http://www.error-ref.com/zinc-deterioration-on-lincoln-cents/
     
    paddyman98, Feb 8, 2017
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  5. Patrick M

    Patrick M Razor edge MD

    Thank you for the link! I appreciate it!
     
    Patrick M, Feb 8, 2017
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  6. Treashunt

    Treashunt The Other Frank

    neither
     
    Treashunt, Feb 8, 2017
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