Got this back from grading. Bought it from the Mint. Called NGC to find out what this meant. Got a gal who read a prepared sentence. I called the mint to see if they had done something to this coin, and they say no, can't be responsible for coins once they leave the mint. Still don't know what is wrong with it. I guess the Postal Service did something to it before NGC got it, because I know that they don't "alter surfaces". Anyway, can someone explain what the mints do to alter surfaces so as to negate a coin from being graded.