Matt Hasselback Signed Seattle Seahawks Mini Helmet Beckett 42429 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 Seattle Seahawks Mini Helmet that was personally autographed by Matt Hasselback. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.