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File:US Navy 031015-N-9214D-014 Signalman 3rd Class Jeff Allen uses a signal light to communicate with other ships in the vicinity during missile firing exercises off the coast of Southern California.jpg - Wikimedia
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Office of Naval Research Set to Upgrade the 200-Year-Old Signal Lamp for Modern Stealth Communication
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1945 Navy Morse Code Signal Light at 1stDibs | navy signal light for sale, morse code signal lamp, navy signal lamp
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