Adrian Peterson Autographed Minnesota Vikings AMP Mini Helmet - Beckett Auth *White This is a hand autograph of Adrian Peterson of the Minnesota Vikings on a Riddell Football AMP Speed Mini Helmet. It has a Beckett Authentication, which comes with a Beckett numbered sticker and a matching Certificate of Authenticity. You can view this item on the Beckett website and it shows when and where the item was signed. 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.