This is a photo gallery of the Swiss NEMA Cipher Machine, presented by the Crypto Simulation Group.
Click on the thumb nail images to get bigger pictures.

You can find more detailed information about this machine in our Cryptologia article:
Geoff Sullivan and Frode Weierud, The Swiss NEMA Cipher Machine, Cryptologia, 23(4), October 1999

To Download a graphical computer simulation of this machine click Here.
( for Windows 3.1x / 95 / 98 / NT4 )

(29k) Main lid open, wheel cover open.	(60k) Main lid open, accessories stored in lid.

(56k) Above: Axle, Reflector and two Double Wheels Below: Left and right face of Double Wheels showing the contacts and a Notch Ring	(43k) Notch Ring on the side of a Drive Wheel	(46k) Double wheel disassembled.

(31k) Reflector, four Double Wheels and Red Drive Wheel assembled in the machine.	(55k) The stepping levers rear view with the wheels installed	(52k) Scrambler, battery holder and counter.

(86k) The stepping levers. Axle and wheels removed	(146k) The stepping levers close up picture	(12k) Internal 4.5 Volt Battery