1977 D LMC RPM, Die Deterioration, OR PMD?

Here are a few photos of the 1977 D, I know there are no photos on V V of the 1977 D. Don't know if one is known exist. I found this interesting so i thought I would share.
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Here are a few photos of the 1977 D, I know there are no photos on V V of the 1977 D. Don't know if one is known exist. I found this interesting so i thought I would share.
Comments
Damaged. Value = 1 cent.
I believe that mint mark has taken a direct squeeze or hit.. I would call it PMD.... ICBW. Cheers, RickO
Instead of showing us thousands of guesses you should take the time to educate yourself on the minting process, maybe they make a book small enough to fit under your microscope.
My Collection of Old Holders
Never a slave to one plastic brand will I ever be.
Uh oh! Now you've done it.

If he is a man of his word he will never see it, lol.
My Collection of Old Holders
Never a slave to one plastic brand will I ever be.
CHILD!