"Aviation photo of a meteorological station in Ourches, France during World War One. The photo depicts soldiers from the 90th Aero Squadron of the 82nd Division blowing up a balloon to determine wind speed and direction. This method is also employed for range finding in artillery fire. Official use only."

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Size: 8463px × 5703px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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