I agree with you that it is PMD. There are only certain things that can happen in the minting process. Outside of the mint there are thousands and thousands of things that can happen to coins (on purpose and by accident). Error collectors study the minting process to determine minting errors. My advise is don't worry about how a coin received it's damage from PMD. Sometimes you can give a good guess but you will never know for sure and in the end it really doesn't matter. Just my opinion.























