Those are the same coin? The '84 is copper plated zinc and looks like it was heated until the zinc core melted. The other which I'm guessing is a different coin? Anyway, idk what kind of marks a vice leaves on a coin but it kinda reminds me of a cancelled coin from India. No idea why India would cancel an American coin tho, lol
Both your coins are definitely altered. Not Mint Errors of any kind Please show each coin just one time.
As stated, the 1972 D was squeezed in a vise, the zinc cent looks like it was heated to the point that the zinc started to melt.