I received a dime not sure what year it is could be 2015 but looks like 2615 plus I believe he has a double chin .
I can see why you asked. That dime has seen some rough handling in its short life, but as the others have said... It is just damage.
2615, LOL. It sure did look like that upon first glance. You have an example of ED, environmental damage, so considered PMD. It had been subjected to some element to change the appearance after it left the mint. NAV but keep it, if you like it.