Here's what I find very interesting. The appraisal letter states that he has no idea how the error occurred. The next sentence say that it definitely happened inside the mint.
How can anyone say they don't know what did it, but guaranty it's a mint error? Doesn't make sense to me.
He goes on to say that the value is so high....
quote:
because that it is on a scarce 2007 Adams dollar
I was not aware that 300,000,000 was scarce.