2001 Upper Deck Ultimate Collection - Ultimate Signatures - Silver #GS Gary Sheffield. Qty Made: 24 - Baseball Card. Featuring the Los Angeles Dodgers. Search for more: 2001 Upper Deck Ultimate Collection. Search for more: 2001 Upper Deck Ultimate Collection - Ultimate Signatures - Silver. View all of our Listings. Located in the beautiful Pacific Northwest, COMC (Check Out My Cards) is the world's largest consignment service for trading card singles. More than 10,000 people have used our consignment service to list over 50 million trading cards. We currently house 20 million cards, ...