Secraphone secure telephone handset, about 1941
Scrambler telephone handset for privacy unit (later known as Secraphone), c.1941, first developed for government and military use as a secure telephone system and issued by the General Post Office (GPO) in the UK around 1937.
The Distributed Proofreaders Canada eBook of The Best of C. M. Kornbluth
Telephone Transmitter
Scrambled phones - Science Museum Blog
Scrambler
2 STARTING POINT Barbara Poniewierski 1 There have been
Pin on Meaningful Impact Team
Secraphone secure telephone handset, about 1941
Air Vice-Marshal Sir Paul Maltby's Despatch on Air Operations during the campaigns in Malaya and Netherland East Indies, 8 December 1941 to 12 March 1942 - Disaster in the Far East 1940-1942
Artillery Communications
Very rare and original British WW2 Scrambler Telephone Model No: 396 c.1938., These fascinating telephones were used by the British government and
Very Rare & Original British WW2 Scrambler Telephone Model No. 396 c.1938
Pearl Harbor - Mother of All Conspiracies
Whitehall wiring: The Communications-Electronics Security Group and the struggle for secure speech - Richard J Aldrich, 2013
Top Secret: London Science Museum
WW2 DATED 1945 GPO BAKELITE SECRAPHONE SCRAMBLER TELEPHONE - OLD PHONE
WW2 DATED 1945 GPO BAKELITE SECRAPHONE SCRAMBLER TELEPHONE - OLD PHONE