Clay Matthews Autographed Cleveland Browns F/S Speed Helmet w/4x Pro Bowl- Prova *Black This is a hand autograph of Clay Matthews of the Cleveland Browns on a Riddell Football Full Size Speed Replica Helmet. Inscribed 4x Pro Bowl. This item has a Prova Authentication, which comes with a numbered sticker hologram. You can view this item on the Prova Authentication website and 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.