Soldiers operating a signal corps apparatus during World War I. The equipment they are using is a Ponal Corps device, specifically a 200-watt PAN, identified by the symbol "H." The photograph number is 36438, with additional notes indicating the equipment and wattage.

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Size: 8672px × 5877px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 111-sc-36438, 200, activities, american, appara, apparatus, corps, description, issued, military, photographs, pinaud, pinnaud, ponal, signal, symbol, tan, war, watt, world