![](https://coimages.sciencemuseumgroup.org.uk/68/255/large_thumbnail_b750698.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/382/453/small_thumbnail_smg00156406.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/696/small_thumbnail_1995_0318__0005_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/697/small_thumbnail_1995_0318__0006_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/698/small_thumbnail_1995_0318__0007_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/692/small_thumbnail_1995_0318__0001_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/693/small_thumbnail_1995_0318__0002_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/695/small_thumbnail_1995_0318__0004_.jpg)
![Four-rotor Enigma cypher machine, 1939-45.](https://coimages.sciencemuseumgroup.org.uk/59/694/small_thumbnail_1995_0318__0003_.jpg)
4-Rotor Enigma with remote lampboard. S/n 765
A four-rotor Enigma cypher machine with a second operator display ('remote lampboard') (S/n 765). This is a variant of the Enigma K cipher machine developed in Germany in 1927. This type of machine, known as a Swiss-K, was supplied to the Swiss government in 1939-40 for use by the Swiss Army and Air Force. Although having four rotors, the fourth is the reflector, so it is not a true four-rotor machine.
Details
- Category:
- Computing & Data Processing
- Object Number:
- 1995-318
- Materials:
- wood (unidentified), felt, leather, paper (fibre product), metal (unknown) and plastic (unidentified)
- Measurements:
-
Overall closed: 154 mm x 382 mm x 300 mm, 12.56 kg
Overall open: 420 mm x 382 mm x 390 mm, 12.56 kg
- type:
- cypher machines
- credit:
- Paul,J.D.