Box - aircraft compass

Grey painted brass corrector box. Containing two independent pairs of magnets operated by bevel gearing inside box and rotated by square-headed key.

Object Details

ID: ACO1151
Type: Box - aircraft compass
Display location: Not on display
Creator: Air Ministry
Date made: 1931
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 30 mm x 63 mm x 63 mm