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Liquid compass
Bowl: Brass. Glazed. Has fill hole on side. Azimuth circle. Heavily weighted at bottom with brass screw tripod fitting. White on inside with black lubber spike.
Card: Mica, white with black markings graduated to 360 degrees and to 16 points. Black dome at centre.
Needle: Unsighted.
Pivot: Unsighted.
Azimuth Circle: Front sight, hinged open arch and thread, has hinged jet reflector. Back sight, fixed prismatic with spirit level and two filters.
O.A. Height 7.5" (19.0 cm)
Card: Mica, white with black markings graduated to 360 degrees and to 16 points. Black dome at centre.
Needle: Unsighted.
Pivot: Unsighted.
Azimuth Circle: Front sight, hinged open arch and thread, has hinged jet reflector. Back sight, fixed prismatic with spirit level and two filters.
O.A. Height 7.5" (19.0 cm)
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Object Details
| ID: | ACO0106 |
|---|---|
| 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: 135 mm; Diameter: 135 mm |