Jared Allen Autographed Kansas City Chiefs F/S AMP Speed Helmet Beckett 37673 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 Kansas City Chiefs full size AMP speed replica helmet that was personally autographed by Jared Allen. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.