Joe Greene Autographed Pittsburgh Steelers Flash Mini Helmet Beckett 38883 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 flash speed mini helmet that was personally autographed by Joe Greene. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.