+
-
Dry compass
Card- Mica covered with paper. White with black and white markings, graduated to 1/4 points and quadrantally in degrees.
Needle- One solid edge bar type, 7.7" long, having a heavy centre boss which carries the pivot cap. Fitted with two sliding weights, two brass strips carrying sliding weights are fitted in E-W direction. The needle is mounted on a light metal ring which is screwed to card.
Pivot- Small cone-shaped brass pivot cap with jewel at top, attached to centre boss of needle.
Needle- One solid edge bar type, 7.7" long, having a heavy centre boss which carries the pivot cap. Fitted with two sliding weights, two brass strips carrying sliding weights are fitted in E-W direction. The needle is mounted on a light metal ring which is screwed to card.
Pivot- Small cone-shaped brass pivot cap with jewel at top, attached to centre boss of needle.
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0945 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | Henry Barrow & Co |
| Date made: | 1837-1840; 1837-40 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 20 mm; Diameter: 190 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.