Alvin Harper Autographed 8x10 Vertical Dallas Cowboys Photo- JSA Authenticated This is a Hand Autographed 8x10 Photo of Alvin Harper of The Dallas Cowboys. This item has a James Spence Authentication, which Comes with a JSA #'ed Sticker and a Matching JSA COA. You can view this item on the SpenceLOA 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.