A friend of mine found this coin and asked me what was wrong with the face? i mentioned that I am fairly new and no expert. My friend asked if somebody was trying to damage the coin, No I said. I believe it is a mint error most likely a Lamination error. I am not sure because I have never seen a coin like this before. i mentioned that i know where a lot of smart people are who would know, so i bring the coin here.
The tip of his nose is indented. That is a detached lamination error. However the coin itself is suffering from corrosion and environmental damage.
Detached lamination. I have added arrows so that to make my explanation a little more clear. The left side of the coin with "STAT" on it is the surface that was in contact with the die when it was struck. The right side is the metal that was exposed after the original metal (That was struck with the die) became detached, that is why the right side is lower than the left. The arrows that I have placed show the seam between the two sides.
Here is an example from my collection. Note how the letters and details on the detached section are less sharp and more mushy than the other areas of the coin. It is the same on your piece.
I can't help seeing the area covering STAT as raised above the rest of the coin. I've never seen a lamination that would cover "the rest of the coin" and fall away leaving a curved boundary like that. But I've seen plenty of blobs of stuff stuck to coins with a curved boundary like that. I'm with @ldhair -- something got stuck to the coin, and still is stuck to the coin.
