Jon Jansen Autographed Michigan Wolverines Logo Football W/ National Champs- Jersey Source Auth. This is a Hand Autographed Football of Jon Jansen with '97 National Champs Inscription. This is a Michigan Wolverines Logo Football. 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.