Colorful postcard-sized commemorative ticket stub from the opening game of the 1939 season at Sportsman's Park, between the St. Louis Cardinals and Chicago Cubs.  Featuring the image of Cardinals manager Roy Blades, the red, white and blue stub celebrates the centennial of baseball, a central theme of the 1939 season.  A "timeline" of baseball is printed on the reverse, crediting Abner Doubleday with the invention of the game in 1839.  VG condition with some light wear and surface soiling.