Signal Corps apparatus for airplane antenna reel (French type) radio apparatus in use during World War I. The photograph was taken in 1919 by an unknown photographer. The image shows a prototype
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Signal Corps Apparatus - Airplane Antenna Reel (French Type-K) radio apparatus. This photograph was taken in 1919 and is labeled with the designation 111-SC-2215. It shows a piece of equipment used by
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Signal Corps apparatus for airplane antenna reel (French type) radio apparatus in use during World War I. The photograph was taken in 1919 by an unknown photographer. The image shows a prototype
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