This is a TRULY LIMITED EDITION Riddell Full-Size Minnesota Vikings Helmet has been hand-signed by Adrian Peterson. The Minnesota Vikings Helmet was autographed at a private signing. All signatures are hand-signed and Guaranteed to be Authentic. All my items come from private signings, premieres, promos, and private collections, obtained by myself and very reputable dealers we purchase from. They are not preprints, reprints, copies, or facsimile. The Helmet comes with a Lifetime Certificate of Authenticity. Provided by site Awesomememorabilia.com