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1989 D Lincoln Mem Cent

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  • 1989 D Lincoln Mem Cent

    I received this coin in change today. It seems to have a lot issues,
    I'm just not sure what. Is this a common problem with this type coin?
    Please see photos.


    Attached Files
    My mind is made up, don't confuse me with the facts!

  • #2
    Hi Patricia,
    Your coin is not typical, although it does show some of the problems encountered with a copper plating over a zinc core.

    The pock-mark appearance is caused by trapped gas between the two layers. While this is a fairly common problem, your coin seems to have an excess of this feature.

    Also, the copper plating has broken down in areas exposing the zinc core (silver colored metal). Over a period of time, the zinc will begin to oxidize, swell and then turn into a powdery white substance.

    In other words, this coins life will be foreshortened due to these defects.

    BJ Neff
    Member of: ANA, CCC, CONECA, Fly-in-club, FUN, NLG & T.E.V.E.C.


    • #3
      1989 D Lincoln Mem Cent

      Thanks for all the help. I'll put it back in circulation, may be someone
      collects these.

      My mind is made up, don't confuse me with the facts!