This looks like post mint damage to me. But if it IS a mint error, you have hit a jackpot as this is a BIG mint error!!! You might want to take it to a coin dealer to be totally sure about your coin. Good luck
This looks like post mint damage to me. But if it IS a mint error, you have hit a jackpot as this is a BIG mint error!!! You might want to take it to a coin dealer to be totally sure about your coin. Good luck