Kordell Stewart Autographed Pittsburgh Steelers F/S Helmet Insc. Beckett 40591 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 Pittsburgh Steelers Speed Full Size Replica Helmet that was personally autographed by Kordell Stewart with "Slash" inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.