+
-
Dry compass
Card- Mica covered with paper, black with white markings. Graduated to 32 points with decorated East point, the outer edge is graduated quadrantally in degrees.
Needle- Flat bar type, 5.85" (14.9cm) in length, with square ends. Has an expanded centre aperture to accommodate pivot.
Pivot- Inverted type mounted in double gimbals in manner patented by George Alexander of Leith in 1813, and attached to needle by two screws engaging in gimbal rings.
Needle- Flat bar type, 5.85" (14.9cm) in length, with square ends. Has an expanded centre aperture to accommodate pivot.
Pivot- Inverted type mounted in double gimbals in manner patented by George Alexander of Leith in 1813, and attached to needle by two screws engaging in gimbal rings.
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0924 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | Dickman, J. |
| Date made: | 1836 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 20 mm; Diameter: 170 mm |
Your Request
If an item is shown as “offsite”, please allow eight days for your order to be processed. For further information, please contact Archive staff:
Email: library@rmg.co.uk
Tel: +44 (0)20 8312 6516 (during Library opening hours)
Click “Continue” below to continue processing your order with the Library team.