+
-
Dry compass
Dry compass
Card: Consists of a paper band attached to a metal circumference and metal centre by fine silk threads. The paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is also a 0 - 360 degree notation. There is a silver paper centre.
Pivot: Consists only of a thin aluminium "washer" which holds the radial silk threads.
Needle: The eight needles, four sets of two, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Lengths 4", 3.5", 3.0" & 2.5" (10.2 cm, 8.8 cm, 7.6 cm & 6.4 cm)
Card: Consists of a paper band attached to a metal circumference and metal centre by fine silk threads. The paper is white with black markings graduated to 1/4 points and quadrantally in degrees. There is also a 0 - 360 degree notation. There is a silver paper centre.
Pivot: Consists only of a thin aluminium "washer" which holds the radial silk threads.
Needle: The eight needles, four sets of two, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Lengths 4", 3.5", 3.0" & 2.5" (10.2 cm, 8.8 cm, 7.6 cm & 6.4 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO0872 |
|---|---|
| Type: | Dry compass |
| Display location: | Not on display |
| Creator: | Ch. Bianchetti & Co |
| Date made: | 1940 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 8 mm; Diameter: 252 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.