This photograph taken by Corp. Klein shows an antenna reel type RL-3 that is used for radio apparatus on airplanes. The photo was taken on May 2, 1918, at the Radio Development Station in Washington, It is not meant for publication. Some additional notes indicate May 3-1918 and the numbers 29/31.

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Size: 9177px × 6297px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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