I'm not a error guru, but that thing is cool. Someone should chime in that might know what happened to it.
Should, (at least in the future) post this type of thing in the errors forum to get better (more knowledgeable) opinions.
Welcome aboard. You'll figure things out. Feel free to ask questions. Sometimes you'll need thick skin, but mostly a good time here. Many knowledgeable folks here to help if needed.
Thought I'd join the club. I was at the laundrymat when I got mine from the quarter machine. If you zoom in you'll see it's got lots of tiny deep gashes - don't know what could do that. Weighs 5.57g
Welcome to CT! That's PMD - Post Mint Damage. It looks like it may have done some hard time in a parking lot. You should start a new thread for new coins. You'll have better luck getting responses.