Oklahoma Heisman Winners Autographed Speed Authentic Helmet w/Inscriptions - Beckett Witness These are the hand autographs of Sam Bradford, Baker Mayfield, Kyler Murray, Billy Simms, Jason White, and Steve Owens of the Oklahoma Sooners on a Riddell Football Full Size Speed Authentic Helmet and inscribed with their respective Heisman years. This item has a Beckett Authentication which comes with a numbered sticker and a matching Beckett Certificate of Authenticity. You can view this item on the Beckett Authentication website. It was signed either at a public autograph appearance or a private signing. This is a stock photo of the item. Although you may not receive this exact item, the item you receive is virtually identical and brand new in great shape.