Patt 188

Made of brass and painted grey. It has a counter balance opposite the prism. The prism has a notched sight and is moveable. There is a celestial reflector with nipple which acts as a fore sight. The two moveable filters are circular. The spirit level can be sighted through the prism.

Object Details

ID: ACO0626
Type: Azimuth Circle
Display location: Not on display
Creator: Unknown
Date made: 1933
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 70 mm; Diameter: 130 mm