A very rare vintage single-signed baseball by pitching legend Sandy Koufax. He signed this Official National League (Giles) ball during the early 1960’s when the Hall of Fame pitcher was throwing for the Los Angeles Dodgers, and was truly coming into his own with three Cy Young awards, two World Series MVP’s, and six straight All-Star selections, before his pre-mature retirement in 1966 because of injury. He signs, "Best Wishes Sandy Koufax", in blue pen on a side panel. Signature is 8/10, while ball is EX-MT. PSA authentication sticker affixed to ball.