Tony Dorsett Signed Dallas Cowboys Ticket 11/2083 vs Chiefs BAS Slab 39474 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 Dallas Cowboys vs. Kansas City Chiefs ticket stub that was personally autographed by Tony Dorsett. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.