Philadelphia Phillies 1939-1941 road hat, made by '47 Brand ("clean up" style) with an adjustable strapback enclosure. 

FUN FACT: On July 1st of 1941, the Phillies played the Dodgers in the first ever televised game on TV. In fact, moments before the game began, the station aired the first ever TV ad of any kind, one for Bulova watches. The ad cost the company $9.