1999D Dime ??pitting or blisters??

Discussion in 'Error Coins' started by Kristen Nicole, Mar 23, 2021.

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  1. Kristen Nicole

    Kristen Nicole Amateur Coin Sleuth

    A0DC7CB6-94BB-41CD-91EA-B513AEDE1785.jpeg 0C1041D1-7C1B-4AE5-B3FD-1AD1C4C606BF.jpeg 896F3394-39FF-4792-B3B8-0FEF4C67CBF3.jpeg 016C1CC8-8105-4789-937E-9438DC9BEDDC.jpeg CC91AD71-DFFD-422D-B5ED-BB5FDD124664.jpeg 5D980BE4-ED8A-4106-A2D5-E2CB17B6DBCA.jpeg 850BB9E9-42FB-45C1-98B9-9E33275C1674.jpeg A0DC7CB6-94BB-41CD-91EA-B513AEDE1785.jpeg 0C1041D1-7C1B-4AE5-B3FD-1AD1C4C606BF.jpeg 896F3394-39FF-4792-B3B8-0FEF4C67CBF3.jpeg 016C1CC8-8105-4789-937E-9438DC9BEDDC.jpeg CC91AD71-DFFD-422D-B5ED-BB5FDD124664.jpeg 5D980BE4-ED8A-4106-A2D5-E2CB17B6DBCA.jpeg 850BB9E9-42FB-45C1-98B9-9E33275C1674.jpeg Hello all,

    This caught my eye today, the pits make it sparkly in the sunshine. I have “Oh shiny” moments :) Is this caused by plating blisters or something more interesting than a dryer full of BB’s?
     
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  3. paddyman98

    paddyman98 I'm a professional expert in specializing! Supporter

    Good question..

    Dimes are clad. Different process than plating.

    The pitting looks like corrosion to the clad layers. Probably a harsh acidic chemical.

    Copper plated Zinc Cents are plated. They started that process in 1982.
     
    Last edited: Mar 23, 2021
  4. GH#75

    GH#75 Trying to get 8 hours of sleep in 4. . .

    Sandblasted?
     
    Kevin Mader likes this.
  5. Treashunt

    Treashunt The Other Frank

    environmental damage
     
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  6. ldhair

    ldhair Clean Supporter

    This.
     
  7. potty dollar 1878

    potty dollar 1878 Well-Known Member

  8. Robert Ransom

    Robert Ransom Well-Known Member

    I'm leaning towards chicken pox. ;)
     
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  9. Collecting Nut

    Collecting Nut Borderline Hoarder

    Looks like someone used acid on it.
     
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  10. Scuba4fun777

    Scuba4fun777 Well-Known Member

    Agreed. This PMD is very likely the result of an acid bath.
     
    Collecting Nut likes this.
  11. Mr.Q

    Mr.Q Well-Known Member

    PMD, Better luck ahead, wait and see...
     
  12. 1stSgt22

    1stSgt22 I'm just me!

    Minted on the moon! See all the craters!!;):)
     
  13. Mountain Man

    Mountain Man Supporter! Supporter

    Appears to be ED to me. Maybe buried in acidic ground for some time?
     
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  14. Nyatii

    Nyatii I like running w/scissors. Makes me feel dangerous

    Since you said it was sparkly, I would say it was run over several times leaving fresh metal in the pits that catch the light. Maybe a gravel or sand parking lot.
     
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  15. Scuba4fun777

    Scuba4fun777 Well-Known Member

    I’d say that the pitting is too uniform for these to be caused by physically moving the metal on the surface. You’d also likely see craters around the pits, too.
    There is metal missing from this coin, likely dissolved in acid.
     
  16. Neal

    Neal Well-Known Member

    Looks like it might be from being walked on at a sandy beach.
     
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  17. john65999

    john65999 Well-Known Member

    i am gonna guess acid??? and not the good kind...
     
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  18. Kevin Mader

    Kevin Mader Fellow Coin Enthusiast Supporter

    I believe it received some kind of media blasting. Looks like someone tried to remove environmental damage, or perhaps paint, and some remains. Where larger areas of the coating lifted, it created the uneven pattern you see mainly on the obverse.

    It seems we've have a couple mystery coins in the past couple of days.
     
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