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Dry card compass
Dry card compass
Pocket compass Dry card
Brass compass in form of a disk with stop mechanism.
Card graduated in hours 12 - 12 and points N. NO. O. SO. S. SW. W. NW.
This instrument can also be used for measuring altitude by means of a pull-out arm which can be sighted along. The altitude is read off a scale which has a brass pointer.
Pocket compass Dry card
Brass compass in form of a disk with stop mechanism.
Card graduated in hours 12 - 12 and points N. NO. O. SO. S. SW. W. NW.
This instrument can also be used for measuring altitude by means of a pull-out arm which can be sighted along. The altitude is read off a scale which has a brass pointer.
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Object Details
| ID: | NAV0209 |
|---|---|
| Type: | Dry card compass |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1785 |
| Credit: | National Maritime Museum, Greenwich, London, Caird Collection |
| Measurements: | Overall: 9 mm; Diameter: 61 mm |