Jay Novacek Autographed/Signed Pro Style Thanksgiving Jersey JSA 43431 The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is the exact item you will receive, please see photos for condition. This is a Pro Style Thanksgiving Jersey that was personally autographed by Jay Novacek. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.