It's a dryer coin. This is considered damage, not an error Here is a good explanation. http://www.error-ref.com/?s=Dryer+coin BTW: the error-ref site is a good one to book mark of you want to learn about errors
It may be a dryer coin, but your images are overexposed which makes it harder to tell what it may be.
Welcome to CT @Janie Haley. As already mentioned, it appears to be a dryer coin and not a mint error.