The number in the listing title is just an inventory sku for our records and is not the authentication number. The item pictured is a stock photo unless otherwise noted. This is a New York Yankees Louisville Slugger Black Baseball Bat that was personally autographed by Don Mattingly includes "Donnie Baseball" inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs. FREE SHIPPING within the USA on orders over $99!