Can anyone tell me who might have autographed this chip? I got it in a trade but have no idea who signed it? Does the autograph actually increase the value in any way? To me it simply messed up an otherwise nice chip, but I can understand others would see it as an asset to have it autographed. Also, how does one determine the value of an error chip, or is there any additional value? I have a Silver Legacy chip that is the same on both sides, which I have been told is an error, and not a common one. Any help on either appreciated. Thanks