Duane Thomas Autographed Dallas Cowboys Mini Helmet W/ SB Champs- Jersey Source Authenticated This is a Hand Autographed Helmet of Duane Thomas of The Dallas Cowboys. This item has a Jersey Source Authentication, which comes with a numbered sticker and a matching COA. You can view this item on the Jersey Source website, 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.