Excellent example of  a dress black visor                       A Korean War vintage P18 dated 1954
belonging to Major General Kenneth Stiles                     owner UNK.
United States Air Force Reserve 

This recruiter sign is two sided U.S. Army on one side U.S. Air Force on the other. Porcelain made               (note the Army Air Corps logo with the U.S. Air Force title. 1946 era