I think it's damage. Hard to tell for sure from such a close-up. That's why we ask for a shot of the entire coin, obverse (front) and reverse (back). To spot a VAM the photo of entire coin is needed, die clashes, cracks...ect help on identifying vams...
edited: to CCF
I'm by no means a pro and will never claim to be...just my 2 cents A smile costs nothing to give or receive....GF If it's not hockey, it's not a sport