8 1/2 by 11 inch commemorative card sheet distributed by Upper Deck at five 1992 Heroes of Baseball Collectors Shows, autographed in blue marker by all five featured players: Hall of Famers Lou Brock, Bob Gibson, Robin Roberts (deceased) and Billy Williams; plus the late San Francisco Giants slugger Bobby Bonds. Has minor wear. Completely signed sheets are extremely rare. Obtained in person. With certificate of authenticity from AutographsForSale.com. ONLY ONE AT THIS PRICE AVAILABLE FOR SALE.