All-Star Heroes 8 1/2 by 11 inch commemorative card sheet distributed by Upper Deck exclusively at the July 24, 1993 Houston Astros home game, autographed in black marker by all four featured players: Hall of Famers Fergie Jenkins, Juan Marichal and Billy Williams; plus Astros great Jim Wynn. Has minor wear. Completely signed sheets are extremely rare. Obtained in person. With certificate of authenticity from AutographsForSale.com. ONLY ONE AVAILABLE FOR SALE.