Typex was the primary cipher machine used by the British military during World War II by and into the early Cold War. Based on the commercial Enigma, it was significantly enhanced to increase its secu
Typex was based on the commercial Enigma machine, but incorporated a number of additional features to improve the security. This model, a Typex 22, was a late variant, incorporating two plugboards.
The Typex 23, pictured, was similar to the Mark 22, but modified for use with the Combined Cypher Machine (CCM).
Typex Mk III was a portable version powered by a handle.
The Siemens & Halske T52, also known as the Geheimschreiber, or Schlüsselfernschreibmaschine, was a World War II German cipher machine and teleprinter produced by the electrical engineering firm Sieme
"Sturgeon" exhibit at the US National Cryptologic Museum
A T52d on display at the Imperial War Museum, London.