Could this be a lamination error?
I have never had a coin with a lamination error so I do not know what one looks like. I've looked at many images but not enough to understand.
This spot definitely looks like a small piece was "peeled off". I understand that a lamination error is a pre-strike error that is on the planchet to begin with.
It's got me stumped. I don't know how else this could have occurred.
This is part of the education for me.