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.
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Object Details
ID: | ACO0626 |
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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 |