Coast Guard Signalman Flashes a Message in Code on a Blinker Light. Sub in Vicinity. A Coast Guard signalman flashes a message in code on a blinker light advising other ships in the convoy that an enemy raider is believed to be lurking in the vicinity waiting to strike. Such a message galvanizes the Coast Guardsmen into action in order to protect the merchant ships and their valuable war material cargoes.

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Size: 4827px × 5693px
Photo credit: © NB/USC / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 17-a2-170, 26-, coast, guard, history, job, rdss, rg