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Liquid compass
Card-A mica band 1" wide attached to the needles by a metal framework. The card is white with black markings graduated to 0-360 in degrees, the markings by normal and reverse.
Needle-The six needles, in 3 pairs are held in a metal framework and to the base of the float, each needle is in a metal tube. Lengths 2.4", 2.8" & 3.2" (6.2cm, 7.3cm & 7.9cm)
Pivot-The pivot is incorporated into the dome float and the jewel can be removed by a screw at the top of the dome.
Needle-The six needles, in 3 pairs are held in a metal framework and to the base of the float, each needle is in a metal tube. Lengths 2.4", 2.8" & 3.2" (6.2cm, 7.3cm & 7.9cm)
Pivot-The pivot is incorporated into the dome float and the jewel can be removed by a screw at the top of the dome.
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Object Details
| ID: | ACO0903 |
|---|---|
| Type: | Liquid compass |
| Display location: | Not on display |
| Creator: | Instituto Idrografico Italian |
| Date made: | 1915 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 40 mm; Diameter: 130 mm |