This Autographed Card Graded 8; Autograph Grade Gem Mint 10! 2017 Panini Prizm Silver #269 Rookie Card has been Personally Signed by Patrick Mahomes of the Kansas City Chiefs. This item is 100% Authentic; it comes slabbed and authenticated by PSA. This item is not autographed. The authenticity can be verified on Professional Sports Authenticator website. The sub grades on the card are as follows; Centering 9; Corners 8.5; Edges 9.5; Surface 9.5