I can't even imagine how it got to that state. Looks like it has survived fires, mud puddles and teething dogs.
Maybe it's "game used", meaning it fell out of the fan's hand and on to a very muddy playing field, where it got trampled by Curly Culp, Willie Lanier and Buck Buchanan's cleats for 3 hours.
I'm guessing it won't make it to his asking price.