Mike Alstott Signed Purdue Boilermakers Gold Mini Helmet Beckett 42044 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 Philadelphia Eagles speed mini helmet that was personally autographed by Darius Slay. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.