Dave Marshall Autographed 1971 Topps #259 Trading Card Beckett Slab 38481 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 trading card that was personally autographed by Dave Marshall. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.