Airplanes - Engines - Airplane spares manufactured by the Excelsior Manufacturing and Supply Co., Chicago, ILL. Excelsior-Lawrence Penguin motors tested and ready for delivery
Summary
Photographer: Excelsior Motor Mfg. & Supply Co.
Airplanes - Engines
Public domain photograph of aircraft engine, free to use, no copyright restrictions image - Picryl description
Tags
Date
1917 - 1918
Source
The U.S. National Archives
Copyright info
No known copyright restrictions