@AW, first welcome to CCF. Second, it is a little hard to know what specific feature of this coin might be doubled from your pics. However, when I blow up and enhance a pic of the date and mintmark, it looks to me like there may be an area of broken plating which has allowed the underlying zinc core to start to corrode and push up on the copper plating. Clearer pics along with a more complete description of what you are seeing with the coin in hand would definitely help us to help you.
"The danger we all now face is distinguishing between what is authentic and what is performed."