- "Hagelin B-21" Cyper Machine, 1927 onwards...
- "Cryptograph" Cypher Machine by Sir Charles W...
- Transvertex HC-9 Cypher Machine, c. 1955...
- Telephone Cyphering Device, c. 1980...
- Czech Transceiver by Tesla, c. 1950...
- Ciphering Machine Enigma K-Model with Additio...
- Cryptographic Equipment ...
- "Enigma M4" Cypher Machine, c. 1942...