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Liquid compass
Bowl: Black painted brass, filler plug at side, expansion chamber at base incorporated with tripod mounting spigot. Inside of bowl painted white with a black wire lubber pointer projecting from the side. Fitted with an azimuth circle (Schmalcalder type prism and two dark shades missing) having a spirit level and an open frame with thread and dark glass reflector (glass broken)
Card: Dia 3.75" (9.5 cm) white-painted with black markings, graduated to 16 points and to 360 deg from South point with inverted graduations.
Needle: Unsighted
Pivot: Unsighted
O.A. Height 7.5" (19.0 cm)
In wooden box 7.0" x 7.0" x 6.26" (17.8 x 17.8 x 15.9 cm)
Card: Dia 3.75" (9.5 cm) white-painted with black markings, graduated to 16 points and to 360 deg from South point with inverted graduations.
Needle: Unsighted
Pivot: Unsighted
O.A. Height 7.5" (19.0 cm)
In wooden box 7.0" x 7.0" x 6.26" (17.8 x 17.8 x 15.9 cm)
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Object Details
| ID: | ACO0108 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Johnson Ltd; Edward John Dent & Co. |
| Date made: | 1912 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 110 mm; Diameter: 130 mm |
| Parts: | Liquid compass |