JJ Watt Autographed/Signed Houston Texans Authentic AMP Helmet JSA 28992 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is a Houston Texans full size AMP authentic/proline helmet that was personally autographed by JJ Watt. Includes a certificate of authenticity from James Spence Authentication (JSA) and Denver Autographs.