Compass bowl cover

Glazed brass circle, brass painted black, designed to fit on compass bowl. Four brass strips attached at centre by brass screw attachment which accommodates adjustable screw card steadier. Brass strips 3" (7.6cm) long and these have a bead on a silk cord hanging from end. This was designed to stop the card rocking.

Object Details

ID: ACO0056
Type: Compass bowl cover
Display location: Not on display
Creator: Henry Barrow & Co
Date made: 1840-1850; 1840-50
People: Captain Johnson
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 40 mm; Diameter: 215 mm
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