Stereograph, "Zeppelin Flying Over a German Town – Lower Valley on the Rhine," Keystone View Company, circa 1914-1918. Image features a zeppelin in flight above buildings in Germany. Caption on verso describes the development and military uses of…
Stereograph, "Preparing to Reconnoitor the Enemy's Position – Officers Entering the Cradle of a Captive Balloon," Keystone View Company, circa 1914-1918. Image features a group of soldiers gathered underneath a tethered observation balloon. Caption…
Stereograph, "Lieut. LeMaitre of French Aviation Forces in America, Explaining Mechanism of 'Nieuport' Aeroplane. Fortress Monroe, VA," Keystone View Company, circa 1914-1918. Image features Lieutenant LeMaitre explaining a mechanism on a Nieuport 17…
Stereograph, "A Flock of French Fliers Ready for Action on the Battle Line. Nieuport Airplanes with Guns," Keystone View Company, circa 1914-1918. Image features French pilots and Nieuport biplanes at an airfield in France. Caption on verso describes…