A soldier of the Radio Division in South Carolina operates an airplane radio telephone set on February 15, 1919. The equipment is specifically issued for official use only. The photo showcases a filament model Y-2997 airplane radio telephone with manual control. Additionally, there are two experimental models in the background.

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Size: 8545px × 5778px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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