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Compass card
Dry compass
Card: This consists of a wide paper covered mica band with a large hole in the centre. The paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is a metal frame work beneath the card which holds the pivot cap and needles.
Pivot: Is of aluminium with a spike in the centre so that the card rests in a pivot cap.
Needle: There are eight needles independantally mounted on the metal frame work, they are all 2.25" (5.8 cm) long.
Decorated at the North point with the initials GH superimposed as a logo.
Card: This consists of a wide paper covered mica band with a large hole in the centre. The paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is a metal frame work beneath the card which holds the pivot cap and needles.
Pivot: Is of aluminium with a spike in the centre so that the card rests in a pivot cap.
Needle: There are eight needles independantally mounted on the metal frame work, they are all 2.25" (5.8 cm) long.
Decorated at the North point with the initials GH superimposed as a logo.
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Object Details
| ID: | ACO0850 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Hechelmann, Georg |
| Date made: | circa 1886 |
| People: | Henry Hughes & Son Limited |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 27 mm; Diameter: 252 mm |
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