Radio wave frequency indicator, United States Army Signal Corps. Circa 1940s-1950s. On red background.

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Size: 4944px × 3296px
Location: United States
Photo credit: © David Hayes / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 1-106-, antique, army, communications, corps, electric, electronics, equipment, frequency, indicator, military, navy, radio, retro, signal, strength, telecommunication, tester, vintage, western