Gabby Hartnett's Invitation to First All-Star Game.

Gabby Hartnett was one of the great catchers of his era (1920s and 30s, almost exclusively with the Chicago Cubs). Arch Ward, a sports editor for the Chicago Tribune came up with the idea of having an all-star game, with baseball's best players, to coincide with the celebration of Chicago's Century of Progress Exposition. Players for the first all-star game were chosen by the managers. Letters were sent by the President of the National League John Heydler to players who were chosen to play in the game. This is the invitation letter sent to Hartnett inviting him to participate in the game and telling him what to bring.