Joe Louis 29 cent stamp U.S. Postal Service 1993 First Day Cover autographed in black ballpoint by the late Hall of Fame boxer Floyd Patterson and he added the years he was heavyweight champion, 1956 to 1959 and 1960 to 1962. Authenticated by JSA with their matching numbered sticker on the cover and certificate of authenticity card. HAS MINOR TO MODERATE WRINKLING. ONLY ONE AVAILABLE FOR SALE.