+
-
Dry card compass
Bowl-Brass. Heavy lead weight at base. Fitted with stop mechanism which also acts as lubber line. mounted in brass gimbals on "Y" mounting. Brass verge ring with brass stud at centre of glass to accommodate azimuth sights.
Card-Mica covered with paper. Green with black markings graduated to points. Fitted with metal rim graduated quadrantally in degrees, reading to 1/3 of a point. Diameter 6.25" (15.8cm)
Needle-Flat bar type pierced at centre to accommodate pivot cap. Length 6" (15.2cm)
Pivot-Steel spike in brass mount attached to base of bowl.
Card-Mica covered with paper. Green with black markings graduated to points. Fitted with metal rim graduated quadrantally in degrees, reading to 1/3 of a point. Diameter 6.25" (15.8cm)
Needle-Flat bar type pierced at centre to accommodate pivot cap. Length 6" (15.2cm)
Pivot-Steel spike in brass mount attached to base of bowl.
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0051 |
|---|---|
| Type: | Dry card compass |
| Display location: | Not on display |
| Creator: | James Imray & Son |
| Date made: | circa 1810 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 100 mm x 230 mm x 245 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.