Yes! PMD - Post Mint Damage That did not occur at the Mint It is an incused and backwards image of another coin. Pressed into your coin. Vise job.
It's known as a vice job. Put two coins together and squeeze in a vise. It's PMD or Post Mint Damage, not an error, as it occurred after it left the Mint.
someone can press in a vice so hard to make this kind of imprint? If so, it must have been done with hydraulics. But who would do this? And if someone did do this, why not keep it himself and sell it as an error coin? who would damage a coin simply to spend it back into circulation?
You must have led a sheltered life. When I was a kid, I used to do this with my Grandfather’s bench vise. The handle was long enough that even a 10 year old could generate enough force to get an impression. You can also stack a couple coins together and hit it with a hammer, but they scatter all over the place and tend to be out of round. BTW: Hydraulic presses tend to flatten the coin to the point where it is almost unrecognizable and too large in diameter to spend. I used to be young and stupid. Now I’m not young anymore
Copper is a soft metal so it's very easy to do this. Same goes for the zinc. As for who would do this, someone with too much time on their hands or someone attempting to be dishonest and create an error with the intention of selling it. Then they find they can't sell it. So what do they do? They spend it!
Yes, but what about the obverse. It looks like a filled-in die. How can you add metal to the coin with a Vice like that?