Photograph of German servicemen holding the tethers of an observation balloon, circa 1914-1918. A balloon winch is visible on the left side of the scene.
Photograph of servicemen holding the tethers of an American observation balloon, circa 1916-1919.Inscription on album page: "U.S. observation baloon [balloon]."Part of Album Three from the Nancy Harkness Collection of World War I Photograph Albums,…
Photograph of servicemen gathered around the basket of a tethered balloon, circa 1914-1918. An airship in its hangar is visible in the background.Part of Album Three from the Nancy Harkness Collection of World War I Photograph Albums, circa…
Photograph of a Salmson 2 A2 aircraft (fuselage number 4) of the 90th Aero Squadron, U.S. Army Air Service, in flight near an observation balloon, circa 1917-1919. Inscription on album page: "U.S. Observation baloon [sic] and Salmson plane."Part of…
Letterpress print of Jean-Pierre Blanchard and Dr. John Jefferies departing Dover during their 1785 balloon flight over the English Channel, art by E. W. Cocks, circa 1840.