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Answer
Your penny has either been gold plated, or has been exposed to enough heat to cause a chemical reaction between the zinc & copper that the coin is made of, turning the coin a brassy yellow color.
In either case, it's only worth maybe a dollar as a novelty item.
First answer by Ranger22. Last edit by WorkingMan. Contributor trust: 652 [recommend contributor]. Question popularity: 23 [recommend question]





