Ernie Banks Autographed/Signed Baseball Bat Mr. Cub Chicago Cubs Beckett 42993 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 Chicago Cubs Blonde Baseball Bat that was personally autographed by Ernie Banks with "Mr Cub" inscription. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.