Bearing Plate

Clear perspex disc with white edge, graduated to 360 (degrees). A perspex arm with a vernier, graduated 30-0-30 is pivoted at the centre. An extension arm is fitted in the lid of the box. Fitted wooden box 14.8 x 14.8 x 1.8" (37.5 x 37.5 x 4.5cm)

Object Details

ID: ACO1281
Type: Bearing Plate
Display location: Not on display
Creator: Unknown
Date made: circa 1940
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 12 mm x 373 mm x 350 mm
Parts: Bearing Plate