Hall of Fame catcher Gabby Hartnett was the first at his position to crush 20 homers in a season, and he was one of the most accurate throwers ever to don the tools of ignorance, routinely leading the National League in caught stealing percentage. The Cubs great single-signed this Official National League (Giles) ball, Leo "Gabby" Hartnett, on a side panel in blue ballpoint pen. Comes with PSA LOA.