Nolan Arenado Autographed Black Baseball St. Louis Cardinals Fanatics 41147 The number in the listing title is just an inventory sku for our records and is not the authentication number. This is the exact item that you will receive so please see pictures for condition. This is a baseball that was personally autographed by Nolan Arenado. This item includes a Fanatics Authentic hologram and a certificate of authenticity from Denver Autographs.