Dry compass

Card-Mica covered with paper. Black with white markings graduated to 1/4 points. Decorated East point.
Needle- Flat edge bar needle which tapers outwards from the centre to near the ends, where it rounds off gradually to flattened ends, this being a feature of Syeds card needles, length 4.75" (12cm).
Pivot- Cone-shaped brass pivot cap with large jewel at top.

Object Details

ID: ACO0912
Type: Dry compass
Display location: Not on display
Creator: Syeds & Davis
Date made: 1817
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 10 mm; Diameter: 120 mm