Photographic group portrait of members of the No. 8 Polish Course at the Royal Air Force Officers' School, March 1943. Individuals are identified by last name, initial, and rank in the caption. Leon Swietlikowski is standing in the back row, fifth…
Composite photograph featuring images of "Green Cross" Mitsubishi G4M Betty aircraft and Japanese officials boarding a Douglas C-54 Skymaster, circa August 1945.
Composite photograph of three images of Eschwege Airfield, superimposed on a map of Germany, April 1945. Typed caption: "Base at Eschwege, April 1945."
Composite photograph featuring five images of Frank C. Leigh during his U.S. Navy service, circa 1944-1945.
Inscription on verso: "Lt. J.G. Frank C. Leigh, USNR, 1944/45. 04-15-45."
Composite photograph of five images of Ordensburg Vogelsang, superimposed on a map of Germany, March 1945. The images depict views of buildings, as well as Allied and German servicemen at the estate. One image features Adolf Hitler inspecting…
Composite photograph of a Lear Developments radio receiver, showing views of the internal components and the external case, circa 1931-1939. The caption notes that this device was developed for the U.S. Department of Commerce.Typed caption on verso:…
Composite photograph of a Lear Developments telephone transmitter, showing views of the internal components and the external case, circa 1931-1939. The verso inscription, which was written by William P. Lear, states that this was the first 3105-3120…
Composite photograph of a Learadio combination motor generator and transmitter, showing views of the internal components and the external case, circa 1935-1937. The verso caption states that this was one of the first transmitting devices for private…
Composite photograph of a Learadio loop antenna, showing two views of the internal components, circa 1931-1939. The caption describes the antenna's development and specifications.Typed caption on verso: "H. Shows an early attempt to tune the loop…