This is an original WWII U.S. Army Air Corps/Force enlisted man's service cap, manufactured by Imperial Cap Works of Denver, Colorado. Its original owner removed the cap's interior wire stiffener, allowing the hat to be reshaped and "crushed" into a silhouette more popular among American airmen. It is constructed of olive drab wool felt, and features a russet brown leather brim and chinstrap. The front is decorated with the small brass disc insignia, as used by U.S. Army enlisted men. Unfortunately, there is damage to the headband throughout and no size tag could be located.