Military field telephone.
Used by the British military from 1940 until 1980.
Used by the Haganah Signal Service. Used by the IDF during the War of Independence (1948).
Used with local battery (two 1.5 Volts BU-30 cells).
Includes bell (ringer) and hand cranked dynamo (~70 Volts, 17 Hz).
Weight: 5 Kg.