Found this in our change , it's smaller than a cent like a dime and weighs 2.7..
Damaged for sure, most likely caught in some type of machinery. Often called dryer coins.
Looks like it sat in something corrosive to me. Yuck, spend it
Post mint damage of some sort....Cheers, RickO
You may never be able to say for certain what actually happened to it, but you can be certain it didn't occur during the minting process.