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Overhead compass
Overhead compass.
Bowl: Dia. 7.5" (19.0 cm) Domed glass bowl surmounted by a red and gold painted metal Royal Crown (damaged) with a gimbal suspension at top.
Card: Dia. 5.5" (14.0 cm) Paper card (top) black with white markings. Graduated to 32 points with a decorated East point. (Bottom) White with red, black & yellow markings. Decorated with emblematic figures of the Planets and scene of ship and figures at centre. Graduated to 32 points with a decorated East point. A brass pivot cap is mounted at centre.
Needle: Length 5.5" (14.0 cm) Two parallel needles mounted on upper surface of card.
Pivot: Brass pivot stem 3.0" (7.6 cm) long attached at centre of base of domed glass bowl.
O.A. Height 10.5" (26.7 cm)
Bowl: Dia. 7.5" (19.0 cm) Domed glass bowl surmounted by a red and gold painted metal Royal Crown (damaged) with a gimbal suspension at top.
Card: Dia. 5.5" (14.0 cm) Paper card (top) black with white markings. Graduated to 32 points with a decorated East point. (Bottom) White with red, black & yellow markings. Decorated with emblematic figures of the Planets and scene of ship and figures at centre. Graduated to 32 points with a decorated East point. A brass pivot cap is mounted at centre.
Needle: Length 5.5" (14.0 cm) Two parallel needles mounted on upper surface of card.
Pivot: Brass pivot stem 3.0" (7.6 cm) long attached at centre of base of domed glass bowl.
O.A. Height 10.5" (26.7 cm)
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Object Details
| ID: | NAV0245 |
|---|---|
| Type: | Overhead compass |
| Display location: | Not on display |
| Creator: | Borger, Ivor Jensen |
| Date made: | circa 1790 |
| Credit: | National Maritime Museum, Greenwich, London, Gabb Collection |
| Measurements: | Overall: 260 mm; Diameter: 245 mm |