Courtland Sutton Signed 2018 Donruss #312 Rookie Card Beckett 10 Slab 35012 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a 2018 Donruss #312 rookie trading card that was personally autographed by Courtland Sutton. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.