Cornell Green Autographed Dallas Cowboys Mini Helmet- The Jersey Source Auth This is a Hand Autograph of Cornell Green of the Dallas Cowboys on a Riddell replica mini helmet. This item has been authenticated by The Jersey Source Authentication, which means the item was signed in front of a representative of The Jersey Source. Each item has a unique Certification Number Hologram and matching Certificate of Authenticity. You can look up when and where the item was signed at thejerseysource.com. 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.