Compass card

Card for a boat's compass.

Card: A mica card attached to the domed float. The card is white with black markings graduated to quarter points and quadrantally in degrees.

Needle: The two needles are held in cylinders attached to the float. Length 4" (10.2 cm)

Pivot: The pivot is incorporated in the float and can be removed by a screw at the top of the dome.

O.A. height 1.5" (3.4 cm)

Object Details

ID: ACO1079
Type: Compass card
Display location: Not on display
Creator: Kelvin Bottomley & Baird Ltd
Date made: circa 1938
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory