Rotor Marine Enigma Machine
by German U-Boat Command to send and receive coded messages.
They entered service at the beginning of February 1942.
Flash swf file of the machine 'opening up'.
the arrow buttons to open parts of the machine. (150KB)
Flash swf file of the machine 'rotating'.
Click the arrow buttons to rotate the machine,
or click the rotate button to have the machine rotate automatically. (330KB)