NEMA rotor cipher machine

From 1938, Switzerland used the German encryption machine Enigma K. They knew, however, that Enigma was not secure, and developed their own cipher machine for the Swiss Army in 1945. NEMA was similar to Enigma but avoided its design weaknesses: every time a key was pressed, not just one rotor moved but several. The reflector could also be rotated. Switzerland used NEMA until 1976 and took it out of service in 1992.