![](http://www.alamy.com/thumbs/6/E00FD7BB-C07C-4A3B-895B-6B054AAD501D/2RBYFDP.jpg)
Caption: "Sgt. P. Buettner, a member of the Signal Corps, captured this photograph on December 1, 1918 in Saarburg, Rhine Province, Germany. The image shows a member of the Signal Division using signaling equipment on an airplane. Photograph taken during World War One."
Size: 8510px × 5755px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No
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