Control unit for bomb locator, No 1 Mark 3; in original transit case.
This field equipment detected and measured distortions in the earth's magnetic field for the purpose of locating bombs sub-surface and was issued from the later part of Second World War until the end of the 1960s. The No 1 Mark 3 was a post-war model (1950s and 1960s) and used widely by Royal Engineers units.
Control unit of green-painted metal, metal handles on each side and two handles on the front. On the top is a clear glass window, screwed in place by 12 screws, revealling two display units with two red LEDs between. Underneath the window stencilled in white paint is: "CONTROL UNITS, LOCATOR BOMB, NO.1 MK.3 ZE 00013" AND "SERIAL NO 038". On the front of the unit are six dials and a small number of flick switches. The front is also stencilled in white paint: "CONTROL UNITS, LOCATOR BOMB, NO.1 MK.3 ZE 00013" AND "SERIAL NO 038" and also "GEC". In addition there is a metal plaque reading impressed and in white paint is: "BRIDGE UNITS, LOCATOR BOMB, NO.1 MK.3 ZE 00072 GEC/57 SERIAL NO 038". Fixed into wooden transit case, painted green, with hinged lid and rope carrying handles. Top is marked in white stencilled paint "LOCATORS BOMB SERIAL NO 203".