I found this coin in a bank roll and I can see that there is something wrong with it. I don't know if this is a mint error or not and I was wondering if I could get some help identifying any errors.
There are two bumps on each side. they seem to be in matching locations and they are raised on both sides. When I looked at it closer, there seemed to be pieces of the shield missing and the color is really weird. I have found a few other half dollars that have this same color but no others with the odd bumps.
Any information on what's going on with this coin would be helpful. Thank you

