Tee Higgins Autographed/Signed Clemson Tigers Full Size Speed Helmet BAS 29411 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a Clemson Tigers full size speed replica helmet that was personally autographed by Tee Higgins. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.