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These educational/reference cards illustrate maritime communication including international code flags, semaphore, Morse code, distress signals, numeral flags and related naval signaling information.
The cards remain housed in their original red, white and blue cardboard slipcase.
Dating to the WWII-era / 1940s period, these would appeal to collectors of nautical ephemera, maritime history, naval memorabilia and vintage educational materials.
Original box and cards show age and handling wear consistent with vintage use. Please see all photos for condition.
