Mariano Rivera Autographed Rawlings OML Baseball W/HOF 100%- JSA Auth This is a Mariano Rivera hand autographed Rawlings Official Game Ball Major League Baseball. This item has a James Spence Authentication, which comes with a JSA numbered sticker and a matching JSA Certificate of Authenticity. 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, brand new, and in great shape. We appreciate your interest in our items and strive to make all transactions satisfying and professional.