Dan Marino Signed Miami Dolphins Authentic Lunar Speed Flex Helmet JSA 34496 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 Miami Dolphins full size authentic lunar speed flex helmet that was personally autographed by Dan Marino. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.