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Post Office Engineering Department gas decontamination squad. 1941.
Soldier wearing military telephone operator's headset. 1918.
Gas mask respirator for telephone operators. 1939.
Aftermath of gas mains explosion, Godliman St, St Paul's, London. 1939.
Bomb damage, Briant Street, New Cross, London. 1940.
Bomb damage at the Central Telegraph Office, Newgate St, London. 1940.
Cable tunnel under military guard during construction, Holborn, London. 1942.
Military wireless operator using a morse telegraph key in a shell hole. 1914-1918.
Military communications during Word War I.
Soldier on guard following fire at Valencia Radio Station, Ireland. 1916.
Operators with helmets and gas masks, Kensington Exchange, London. 1942.
Operators wearing steel helmets, Bishopsgate Exchange, London. 1942.
Operator and supervisor wearing steel helmets, Bishopsgate Exchange, London. 1942.
Attendant at a Emergency Telephone Bureau. 1942.
Tommy Flowers and his WWII team, BT research laboratories, Martlesham. 1981.