Ty Law Autographed Michigan Wolverines Speed Authentic Helmet BAS 40039 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 Michigan Wolverines speed authentic helmet that was personally autographed by Ty Law. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.