Liquid compass with binnacle. Inscription on azimuth circle reads: 'Patt 1880'. Inscription on binnacle reads: '1531.H'.

Bowl: Grey painted brass, filler plug at side, expansion chamber incorporated with glazed bottom. Inside of bowl painted white with black lubber line projecting from side. An azimuth circle of grey painted brass is fitted to the verge ring; it is of the large prism type and has a "V" sight, two dark shades and a black glass reflector. Mounted in a grey painted brass gimbal ring 6.25" (15.9 cm) dia., which is secured in binnacle.

Card: Dia: 3.25" (8.3 cm) Black painted mica? with cardinal points marked in white. The outer edge of card is white with black markings and graduated quadrantally in degrees with a second mirrored set of graduations for use with azimuth circle. Attached to black painted float at centre.

Needle: Unsighted.

Pivot: Unsighted, but stem can be seen secured to bridge mounted across bottom of bowl.

Binnacle: Dia: 7.5" (19.0 cm). Grey painted brass and varnished wood, hood missing. Fitted with two athwartship brackets and correction spheres. An electric lamp socket is fitted at side, access to bulb and vertical correction magnets is by sliding door at fore side. Access to fore-and-aft magnets is by small hinged doors on fore-and-aft sides. A gimbal ring clamp is fitted at top of binnacle. A screw operated dimmer switch is fitted at after side.

O.A. height 12.5" (31.1 cm)