Joe Montana Signed 1997 Upper Deck Legends #178 Trading Card BAS 10 Slab 37571 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 trading card that was personally autographed by Joe Montana. This has been professionally slabbed by Beckett Authentication Services (BAS) and includes a certificate of authenticity from Denver Autographs.