British, c.1923–1924, British Thompson-Houston (B.T.H.) Type C Form A Crystal Wireless Receiver, Serial R3306, with BTH Headphones and 1935 G.P.O. Wireless Licence
German, WW2-Dated 1943, Feldfernsprecher 33 (FF33) Field Telephone by Telefonbau und Normalzeit (T&N), Waffeamt Marked, WaA905
WW2 era, USA, Telephonics Corporation. NY, Headset, with Amplivox ears
British Army, c1960, Larkspur A41 Tank Commanders Communications Headset and Handheld push-to-talk (PTT) Microphone
"M-63 Yugoslav Peoples Army (JNA) Field Telephone", made by Iskra
"M-63 Yugoslav Peoples Army (JNA) Field Telephone", made by Iskra #2
WW1, Edison & Swan, Galvanometer, Q and I tester, No 21428, Dated 1918
WW2 British Army Telephone Set F #3
