Liquid compass - aircraft

Bowl-Black painted alloy, filler plug at bottom, expansion chamber at fore end. Corrector magnet carrier on top. Inside of bowl black with a luminous wire lubberline mounted across diameter of curved verge glass.
Card-Dia. 2.75" (7cm) Vertical metal ring painted black with white markings, graduated to 360 degs., attached by four metal struts to pivot at centre.
Pivot-Mainly unsighted, but stem can be seen attached to base of bowl.

Object Details

ID: ACO1233
Type: Liquid compass - aircraft
Display location: Not on display
Creator: Carwil
Date made: circa 1940
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 78 mm x 88 mm x 78 mm
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