Liquid compass

Card-A metal card with the markings engraved. Graduated from 0-360 in degrees and points. It is attached to the float by screws.
Needle-Inside float.
Pivot-Incorporated into the heavy metal float.

Object Details

ID: ACO0904
Type: Liquid compass
Display location: Not on display
Creator: Inc A Salmoirachi
Date made: circa 1930
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 50 mm; Diameter: 117 mm