Mike Alstott Signed Purdue Boilermakers White Logo Football BAS 42545 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 Purdue Boilermakers White Logo Football that was personally autographed by Mike Alstott with "Hail Purdue" inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.