Clay Matthews Autographed Green Bay Packers VSR4 Mini Helmet JSA 36247 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 Green Bay Packers VSR4 mini helmet that was personally autographed by Clay Matthews. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.