John Riggins Signed Washington Football Team Authentic Speed Helmet JSA 34938 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 Washington Football Team full size authentic speed helmet that was personally autographed by John Riggins with HOF inscription. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.