Adrian Peterson Autographed OU Sooners Full Size Helmet- Fanatics Auth This is a Hand Autographed Helmet of Adrian Peterson of The Oklahoma University Sooners on a Riddell Football Replica Helmet. This item has a Fanatics Authentication, which comes with a Fanatics #'ed Sticker and a matching COA. You can view this item on the Fanatics 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.