Vladimir Guerrero Sr Autographed Montreal Expos OML Baseball HOF Beckett 36349 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 official Major League baseball that was personally autographed by Vladimir Guerrero Sr. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.