A photograph showing radio field instruments used by the Signal Corps, during World War I. The instrument featured is a radio wavemeter (Signal Corps type - #60) with a range of 200 to 650 meters. The photograph was taken by Lt. deBerri on April 11, 1918 and is labeled as not for publication. The notes mention the issuer as Wunder Radio, and the date as April 24, 1918.

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Size: 9183px × 6305px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: #60, ., ..., 11, 23, 24, 200, 650, 1918, activities, american, april, beradio, corps, deberri, field, instruments, lt., meters, military, publication, radio, range, seco, shayater, signal, war, wavemeter, world, wunder