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Dry compass
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 a silver paper centre.
Pivot: Consists only of a this aluminium "washer" which holds the radial silk threads.
Needle: The eight needles, two sets of four, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Length 3.5" (8.7 cm), 3.25" (8.3 cm), 2.75" (7.0 cm) and 2.25" (5.6 cm)
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 a silver paper centre.
Pivot: Consists only of a this aluminium "washer" which holds the radial silk threads.
Needle: The eight needles, two sets of four, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Length 3.5" (8.7 cm), 3.25" (8.3 cm), 2.75" (7.0 cm) and 2.25" (5.6 cm)
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Object Details
| ID: | ACO0847 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | Kelvin & James White Ltd |
| Date made: | circa 1910 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 25 mm x 270 mm x 265 mm |