So much looks wrong here... the diagonal lines all over the obverse and reverse... the chin, bottom of the neck, front of the hair, back curl of the nostril, all look doubled slightly, the dullness of the surface in general, some places look like could have been stamped maybe at a different orientation and then polished over to attempt to cover it up... but let’s be real I always think I see things that probably just come down to pmd. But what causes a one year old coin with full bands still on the torch to look this way? Was it exposed to chemicals and that’s what caused everything I think I see? Was it improperly annulled? Someone help me out here!
Yes to damage. Yes to you are seeing things that aren't there. What caused it? IDK. I would imagine some sort of chemical reaction but I'm not expert.
I think the lines on your coin could have been made when the strip of metal was rolled out to the proper thickness. Or the feed roller of the machine that cuts the strips into blanks. Dirty / contaminated rollers. I say this due to the lines being orientated in the same direction on front and back. The obverse seem to be struck with a worn or dirty die. And over-all a poor example of a coin that make a lot of other ones look good.
