I think it is damage. In fact I am almost positive it is damage(save for the off chance of some complicated series of events of little likelihood) However, keep looking, and :welcome:
Thanks for the info. Not sure what kind of damage it is. No matter the cause, it's kinda wild. Thanks for all your answers and I look forward to hangin around a bit. Thanks for the "Welcomes"!
I like trying to figure out what *might* have caused the damage on coins like this, but this one is difficult. I got nothing.