San Diego Air & Space Museum Archives:
Bilstein_00005 Donald Douglas
kitradioco:
Bleriot style monoplane
Tekniska museet:
Fokkervinge
Tekniska museet:
Junkers junior
San Diego Air & Space Museum Archives:
--breguet 19 with screw type propellor
San Diego Air & Space Museum Archives:
Carl Gwartney Collection Image