Enigma M4 cipher machine 4-rotor German naval version at Caen Memorial. Caen, France.

Enigma M4 cipher machine 4-rotor German naval version at Caen Memorial. Caen, France.
Photo by Jim Steinhart © 2020, all rights reserved. (Ref: FWNCN597)

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Caen Memorial
WWII Occupation of France

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