TJ Hockenson Signed Detroit Lions 2019 Donruss #321 Beckett Auto 10 40691 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a 2019 Donruss Panini #321 trading card that was personally autographed by TJ Hockenson. This was professionally authenticated and slabbed by Beckett Authentication Services (BAS), also includes a certificate of authenticity from Denver Autographs.