date(s):

ca. 1928; 1955-1957

creator(s):

Mantz, Paul, 1903-1965; Pioneer Instrument Company

subject(s):

Airplanes; Airplanes in motion pictures; Spirit of St. Louis (Airplane); Aeronautical instruments; Aviation; Compass; Ryan airplanes; Ryan Brougham (Airplane); Altimeter; Air speed; Air-speed indicators; Speed-indicators; Pressure gages; Gages; Magneto; Clocks and watches

type(s):

Instrument, Flight; Whole