German Enigma Machine

This is a four rotor Enigma machine that was created by German around the time of 1943-1944.  Germany built this rare Enigma for its ally, Japan.  You can tell by both the character and the fourth rotor.  Germany was unaware that Britain had cracked the Enigma they added the fourth rotor in 1942 to strengthen it.

The British called the device’s messages “Shark.”  It took nearly a year to crack, and only after capturing key sheets from a German U-boat.  In the interim, Nazi subs sank more than 2 million tons of Allied supplies.

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