Airplanes - Struts - Testing aeroplane struts for maximum load. Forest Products Laboratory, Madison, Wis
Summary
Photographer: Forest Products Lab., Madison
Airplanes - Struts
Public domain photograph related to the United States in World War One, 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