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what caused this?

goossengoossen Posts: 492 ✭✭
in World & Ancient Coins Forum
I tried to remove it with warm soapy water but nothing changed... so I leaved as is.

image

wondering what happened to this coin...
My coins with pictures: http://www.paraguaycoins.com/

Comments

  • AethelredAethelred Posts: 9,288 ✭✭✭
    PVC perhaps, try an acetone bath.
    If you are in the Western North Carolina area, please consider visiting our coin shop:

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  • Steve27Steve27 Posts: 13,274 ✭✭✭
    " PVC perhaps, try an acetone bath."

    Just what I was thinking.
    "It's far easier to fight for principles, than to live up to them." Adlai Stevenson
  • ozzysdadozzysdad Posts: 534
    Oxidation?
  • gxseriesgxseries Posts: 423
    It's an aluminium coin, so it can be from aluminum oxide to iron oxide. Not too sure if acetone will work, but I am sure you can find a better coin (I remembered I had a pile of them somewhere in my collection). Those coins are very common.
    List of my partial coin list: My Coin List
  • farthingfarthing Posts: 3,294 ✭✭✭
    Absolutely common coin - I have 12 of just that date and 55 total for the denomination.


    If you've been to China it's hard not to accumulate these coins. Other than dropping them into a charity box at the airport it's hard not to return with a handful of these.
    R.I.P. Wayne, Brad
    Collecting:
    Conder tokens
    19th & 20th Century coins from Great Britain and the Realm
  • goossengoossen Posts: 492 ✭✭
    I see... I'll try to get a better piece then... I got it from a swap with a spanish collector
    My coins with pictures: http://www.paraguaycoins.com/
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