Jim McMahon Autographed Chicago Bears Logo Football- JSA Witness Auth This is a Hand Autographed Football of Jim McMahon on a Chicago Bears Logo Football. This item has a James Spence Witness 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.