Boat's liquid compass and binnacle

Boat's liquid compass. There is a replaced sealant ring marked ACO0201.1 which can be found via the Whole/Part toggle.
Bowl: A brass bowl painted black on outside and white on inside. It has a black lubber line, weighted base, expansion chamber and filler plug on side. Set in double gimbals.
Card: A mica card, white with black markings graduated to four points and 0-360 by degrees.
Needle: Unsighted
Pivot: Unsighted
Binnacle: A brass binnacle with removable hood. The hood has a fixed window with an oil lamp on one side. There is no bottom to the binnacle but it does have a flange with screw holes.
Diameter: 8.5" (21.5cm) O.A. Height 13" (33cm)

Object Details

ID: ACO0201
Type: Boat's liquid compass and binnacle
Display location: Not on display
Creator: J. D. Lang & Co
Date made: 1929
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 310 mm x 295 mm x 250 mm
Parts: Boat's liquid compass and binnacle