Fergie Jenkins Juan Marichal Billy Williams Jim Wynn signed Astros 1993 UD card sheet JSA

All-Star Heroes 8 1/2 x 11 inch commemorative card sheet distributed by Upper Deck exclusively at the July 24, 1993 Houston Astros home game, autographed in black Sharpie 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 rare. Obtained in person. Authenticated by JSA with their matching numbered sticker on the sheet and certificate of authenticity card. ONLY ONE AVAILABLE FOR SALE.