The 'Swiss K' was was based on a commercial Enigma K with 3 wheels (from a set of 3) and a single notch on each wheel. The wheels were frequently rewired by the Swiss Army and the example here is a Swiss Air Force Enigma.

[K-797]
The wiring of this machine was measured by Alan Stripp in 1997. The graphics have been deduced from photographs supplied by David Hamer.
