Rare Cornelius McGillicuddy (Connie Mack) Signed 1941 PA Township Supervisors Cover (JSA Auction Letter). Rarely seen signature in Mack's birth name! Cornelius McGillicuddy (December 22, 1862 – February 8, 1956), better known as Connie Mack, was an American professional baseball catcher, manager, and team owner. Mack holds records for the most wins (3,731), losses (3,948), ties (76), and games managed (7,755) in Major League Baseball (MLB) history.

Condition: EX