Roy Williams Signed Oklahoma Sooners Speed Mini Helmet Superman BAS 37357 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 Oklahoma Sooners speed mini helmet that was personally autographed by Roy Williams with Superman inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.