Trevor Hoffman Signed San Diego Padres Black OML Baseball HOF Beckett 34420 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 black baseball that was personally autographed by Trevor Hoffman. Includes a certificate of authenticity from Beckett Authentication Services (BAS) and Denver Autographs.