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. A 10” Kelvin-type light dry card compass with the card inscribed “Wilson Gillie” and “John Lilley & Son, London & N Shields”. The card is graduated to 360° with a second, inner, circle of degrees within the poin
1940
National Maritime Museum

. A grey painted aluminium corrector magnet holder with a 2.5" (6.4cm) long vertical magnet mounted at top of aluminium tube 5.5" (13.4cm) long.
1940
National Maritime Museum

. A Thompson type and has counter balance and spirit level at one end. A cross strut holds the shadow pin at centre. A sloping tube houses a magnifier with wire in its lower end. At the upper end of the tube is a small adjustable prism and two semi-circul
1940
National Maritime Museum

. Amplifier unit for the MK22 Gyrocompass
1940
National Maritime Museum

. Black plastic corrector box. Containing two independent pairs of magnets operated by bevel gearing inside box and rotated by square-headed key.
1940
National Maritime Museum

. Bowl- Dia. 9.75" (24.8cm) Black painted brass, domed china base, with patent bubble trap. Inside of bowl painted white with four black wire lubber lines. Card-Dia. 7.5" (19cm) White painted aluminium with black markings, graduated to 360 degs.
1940
National Maritime Museum

. Bowl- Diameter 6.5"(16cm) Grey painted aluminium bowl, expansion chamber at base (below domed cover). The top cover plate has a hole 1" (2.5cm) dia. through which a section of the card can be seen, a lubber line is fitted across the hole below
1940
National Maritime Museum

. Bowl-Dia. 9.75" (24.8cm) Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom, base fitted with a heavy balancing ring. Inside of bowl painted white with two black wire lubber lines mounted on side. Mou
1940
National Maritime Museum

. Bowl-Dia. 9.75" (24.8cm) Grey painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom, base fitted with a heavy balancing ring. Inside of bowl painted white with two black wire lubber lines mounted on side. Mou
1940
National Maritime Museum

. Bowl-Ironium (?) plated, filler plug on foreside, expansion chamber at top. Inside of bowl black with a white painted wire lubber line mounted across diameter of curved verge glass. Mounted in a bracket on coil springs with felt pads. Corrector magnets
1940
National Maritime Museum

. Box for azimuth circle. The azimuth circle has been deaccessioned.
1940
National Maritime Museum

. Card for a liquid compass. Card: A one inch band of mica is supported by a wire framework attached to the dome. The card is mica, brown with black markings graduated to quarter points and quadrantally in degrees. Needle: The two needles are enclose
1940
National Maritime Museum

. Card- Consists of an aluminium rim and centre boss between which are stretched 32 silk threads. A white paper band 2" wide is attached partly to the rim and partly to the threads. The band has black markings and is graduated to 1/4 points and to 36
1940
National Maritime Museum

. Consists of a rectangular metal framework with a crossbar at centre. The crossbar has a hole in it. The two hinged sights are the same size, though one is an open arch with thread and the other a slit sight. Two threads run from the crossbar to the bott
1940
National Maritime Museum

. Dry compass Card: Consists of a paper band attached to a metal circumference and metal centre by fine silk threads. The paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is also a 0 - 360 degree notation. Th
1940
National Maritime Museum

. Liquid compass Bowl: Dia 8.25" (21.0 cm) Grey painted brass, two filler plugs at side, expansion chamber at base. Electric light fitting at base. Brass verge rings graduated to 360 deg. Domed verge glass is fitted with a brass spigot at centre, f
1940
National Maritime Museum

. Liquid compass Bowl: Diameter 6.5" (16.0 cm) Grey painted aluminium bowl, filler plug in top plate, expansion chamber at base (below a domed cover). The top cover plate has a hole 1.0! (2.5 cm) in diam through which a section of the card can be s
1940
National Maritime Museum

. Liquid compass Card: Mica ring 0.6" (1.5 cm) wide, painted white with black markings, graduated to 360 degrees, attached by wire framework to annular plastic float at centre. The base plate is of clear perspex 6.75" (17.1 cm) diameter, and h
1940
National Maritime Museum

. Liquid compass Card: Plastic ring 0.5" (1.3 cm) wide painted white with black markings, graduated to 360 degrees attached by wire framework to annular plastic float at the centre. The base plate is of clear perspex 6.3" (16.0 cm) diameter, a
1940
National Maritime Museum

. Liquid compass It is not possible to see the magnetic compass, only the projector unit. Consists of a white ground glass disc with a moveable pointer at the centre, fitted with a verge ring which is graduated to 360 degrees. Mounted in a grey painted
1940
National Maritime Museum

. Liquid compass The card is mounted on a plastic base plate, diameter 6.75". This base plate has four upright lubber lines of white plastic. Card: The card is a mica band 0.75" wide held to a plastic dome float by a metal framework. The card
1940
National Maritime Museum

. Liquid compass Bowl: A brass bowl with a black exterior and a white interior. It has a black lubber spike and an expansion chamber at the base with a filler plug at the side. Set in double gimbals. Card: A mica band white with black markings graduated t
1940
National Maritime Museum

. Liquid compass
1940
National Maritime Museum

. Liquid compass
1940
National Maritime Museum

. Liquid compass and binnacle. Bowl: Dia. 9.5" (23.5 cm) Black painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom. Inside of bowl painted white with four black lubber lines painted on side. Verge glass car
1940
National Maritime Museum

. Liquid compass bowl Bowl: The bowl itself is an expansion chamber. It has a heavy brass ring at the top and copper clips at the base. It is glazed top and bottom. Inside the brass ring is a screwed in ring which itself has six screws, this is repeated
1940
National Maritime Museum

. Liquid compass with binnacle and hood. Bowl: Dia 8.25" (21.0 cm) Grey painted brass, two filler plugs at side, expansion chamber at base. Electric light fitting at base. Brass verge ring graduated to 360 degrees. Domed verge glass is fitted with
1940
National Maritime Museum

. Liquid compass with binnacle and hood. Bowl: Dia. 9.0" (22.9 cm). Black painted brass, filler plug at side, expansion chamber at base incorporated with glazed bottom. Inside of bowl painted white with two black wire lubber lines attached to sides
1940
National Maritime Museum

. Magnet holder, compass corrector Black plastic corrector box. Contains two independent pairs of magnets operated by bevel gearing inside box which are rotated by a square-headed key (for E-W correction). A second set of magnets, similar to the former,
1940
National Maritime Museum

. Set of four steel needles 4.3" (11cm) long 0.3" (1cm) in diameter. Mounted in wood blocks at either end.
1940
National Maritime Museum

. Set of four steel needles 4.3" (11cm) long 0.3" (1cm) in diameter. Mounted in wood blocks at either end. Set in an aluminium tray.
1940
National Maritime Museum

. Star identifier. Cardboard star chart. 7 perspex templates for latitudes 0-60. Cardboard folder.
1940
National Maritime Museum

. Star identifier. Cardboard star chart. Wood star chart. 7 perspex templates for latitudes 0-60 degrees. Cardboard folder.
1940
National Maritime Museum

. Submarine liquid compass Bowl: Diameter 1.99" (5.0 cm) Black painted brass, the sides of the bowl form a bellows and act as a long expansion chamber. Glazed at both top and bottom. Inside of bowl black with a lubber pointer projecting from fore
1940
National Maritime Museum

. The sextant has a black-lacquered brass three-circle pattern frame and a wooden handle. The endless tangent screw and clamping screw are positioned on the back of the index arm. The instrument has four green shades and three green horizon shades. Index-
circa 1940
National Maritime Museum

Patt 1152. Has general shape of an anchor without crossbar at the top. The prism has a notched sight and a line down the centre. There is one circular filter. Both prism and filter can be moved by the same milled screw. At opposite end to prism there is a
1940
National Maritime Museum

Type PEX U/4. Bowl-Translucent with black painted brass verge ring, and bubble trap at base. Inside of bowl white with four black lubber lines. Mounted in a black painted brass gimbal ring 6.5" (16.5cm) diameter. Card-4" (10.2cm) diameter, whit
1940
National Maritime Museum

Seekreiselsextant. The sextant has a casing of aluminium and artificial materials, housing optical equipment, a clockwork averaging mechanism, electrical equipment, and a rubber eyecup. The shades and various unidentified parts are missing. The instrument
circa 1943
National Maritime Museum

Stepnada. Spec 7x30 (wide angle)
1940s
National Maritime Museum