Last year I
did a lot of research on the Typex and M-209 cipher machines. While researching
the Typex I also found interesting information on the lesser-known Combined
Cipher Machine. This device was widely used by the US and British armed forces
in WWII and in the 1950’s yet there are only a few references in books and
these do not include details on its operation and message procedures.
For this
reason, I decided to write the detailed essay ‘The
Combined Cipher Machine 1942-1962’.
I’ve also
uploaded the files ‘CCM
1943-45’ (from the US National Archives) and a Typex
and CCM distribution list from 1945 (from the British National Archives).
