974-Y8 First Flight of DH-4 Liberty Plane.  Just about to leave the ground.  Aviation Field, Air Service Production Center No. 2., Romorantin Aerodrome, France, May 18th, 1918.
Air Service, United States Army photograph
Air Service, United States Army photograph, Gorrell's History of the American Expeditionary Forces Air Service, Series M Misceanelous, Volume 7 Titles for Still Pictures of Air Service Subjects and Photographs of Air Service Subjects  via <a rel="nofollow" class="external free" href="http://www.fold3.com">http://www.fold3.com</a>