Deion Sanders Signed Dallas Cowboys Authentic Speed Flex Helmet Beckett 35845 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 full size authentic speed flex helmet that was personally autographed by Deion Sanders. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.