Mariano Rivera Autographed Rawlings OML Black Baseball w/ HOF -JSA Auth This is a hand autograph of Mariano Rivera on a Rawlings Official Game Ball Major League Black Baseball and inscribed with HOF 2019. This item has a JSA Authentication, which comes with a JSA numbered sticker and a matching Certificate of Authenticity. You can view this item on the JSA 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.