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Compass card
Dry compass
Card: A Kelvin type construction. The thin paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is a plain paper circle in the centre. The whole card is suspended on a silk thread complex which is attached to a thin metal circumference.
Pivot: The thin aluminium pivot is held in place by silk threads and contains a spike so that the card rests in a pivot cap.
Needle: There are eight needles slung independently beneath the card by silk threads. They are all 2.5" (6.5 cm) long.
Decorated at North point with the initials GH superimposed as a logo.
Card: A Kelvin type construction. The thin paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is a plain paper circle in the centre. The whole card is suspended on a silk thread complex which is attached to a thin metal circumference.
Pivot: The thin aluminium pivot is held in place by silk threads and contains a spike so that the card rests in a pivot cap.
Needle: There are eight needles slung independently beneath the card by silk threads. They are all 2.5" (6.5 cm) long.
Decorated at North point with the initials GH superimposed as a logo.
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Object details
| ID: | ACO0851 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Hechelmann, Georg |
| Vessels: | Princess Cecelie 1914 |
| Date made: | circa 1886 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 15 mm; Diameter: 250 mm |