Found this while coin roll searching. Seems to be a mint error not pmd.l would like a second opinion.
It's a 'counterpunch' - Someone punched the '7' into the coin. See the flattened area on the obverse. Definitely PMD
That's what I thought at first. Put under my microscope and seems to be struck a with minting of coin. It actually looks like the number 4. Wish I could take better pics. I have many punched coins none have this appearance close up.
Done after the coin left the US Mint. I agree with Counterpunch Not a mint error of any kind. @Fred Weinberg Upside down 4
Not a Mint error. It is PMD as it was done after it left the Mint. It's called a counter punch. Reread what Fred and Paddy said.