Looks like clear glue or lacquer or something similar, rather than a strike through. I assume that is what you are referring to?
No, I'm comparing it to the SMS series which seemed to be plagued with struck throughs. I have dozens of sets where multiple coins have been struck through something.
Having seen it in hand, I was also PMD. I’d be interested to see it get soaked in distilled water to see what happens.
I've already put in underwater and thumb cleaned it . Fibers were come off and leaving worm trails ...
I agree 100% . Then they'll be nothing but, worm trails left . I also think the surface of the coin will get ruined, trying to clean it .
I regret not having looked at this with a loupe. This is what makes me think PMD: Acetone shouldn’t remove existing impressions in the coin and a short bath shouldn’t hurt the coin itself.