I found a 1990 P dime with smooth thick edges. When I opened the roll I initially thought it was a penny. I'm pretty sure it's an error but I have not really been able to find anything about what it's worth or what the specific error is called.
A Dryer Coin is caused by a coin getting stuck in the inner workings of a clothes dryer (usually commercial) and the edge being altered in the process. Try a search for the term Dryer Coin, and you will see coins that are very similar to your coin.
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