I'd be careful with KG autographs. He only signs for Upper Deck Authenticated (UDA), and his pieces go for $500+ retail. KG is known in all of sports as one of the toughest signatures to acquire as he does sign at games or even at paid signing events like many past and present athletes do. A COA is only as good as where it comes from; anyone can print out a piece of paper that says this item is legitimate.