I'm pretty sure I just got a copper quarter for change from the airport. It's year is 1981. How much could it be worth? How do I clean it to make sure it's not just rusted without damaging it or reducing the value?
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It is more likely a quarter that had been in water or has other environmental damage. In order to be a copper quarter the outside layers would have to been missed when the blank was made. It then would be real thin and weigh a lot less than 5.67 grams of a normal quarter. Cleaning it would damage it more, for it is damage in the first place.
A copper quarter is worth ...slightly less than 25 cents. After the bicentennial coins in 1976, quarters, half dollars and dollar coins were made of 91.67% copper and 8.33% nickel composition for general circulation. Somebody worked quite diligently to remove the silver color for reasons that only he/she knows. Your quarter is the same as every other coin of it's type, except yours has been purposely defaced. It may look neat, but it is not valuable.
it is about $15 because they where only made in Vietnam
