Jeremiah Owusu-Koramoah Signed Notre Dame F/S 2016 Riddell Helmet BAS 32533 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a Notre Dame Fighting Irish full size 2016 Riddell replica helmet that was personally autographed by Jeremiah Owusu-Koramoah. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.