Here is some unusual PMD.
First glance looks like it was punched/stamped/hit and the edge around the crater is raised ever so slightly.
Turn it over and there is no flat or damaged spots that you would expect to see.
The quarter is still perfectly flat and is not bent or warped.
The crater doesn't show grinding marks or polishing.
How do you displace that much metal without distorting the coin?
There is a strange ring of PMD that has moved some metal and may be from how the coin was held.
I know this is just another PMD coin that unless you were there when it happened there is no way to know for sure.