Vintage RAF Aircraft Radio Compass Electrical Indicator Type 1, 10Q/49

Dated around 1958

Broad-arrow British military mark to the face. 

Serial No 339742

Reference to the side S.T.1 / Radio / A.A. / 51 and 59

15cm x 15cm x 10cm

As used in British RAF aircraft, post WW2.

A navigational device that gives a bearing by determining the direction of incoming radio waves transmitted from a particular radio station or beacon. 

Good used condition for age, with some superficial wear and marks. Potentially still in working order, but untested.