Discussion in 'Error Coins' started by Candice Wise, Oct 17, 2020.
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It's a Copper Plated Zinc Planchet.
The plating around the mint mark has been compromised and the inner zinc in that area will rot.
Like this -
Yes, yes, yes.. You will see.
As the zinc is exposed to the environment, the corrosion products can expand and push up the copper plating. It's similar to rust on a car, bubbling up the paint.
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