Black painted metal case mounted on top of a grey painted metal pedestal 6" (15.2cm) dia. At centre of one side of case is dial marker "Port and Starboard" with a pointer which is moved by a brass knob at centre. Above the dial is a glazed arc through which a vertical compass card, graduated to 1/4 points and to 360 degs, can be seen. an electric lamp in a tubular fitting is mounted at front.