Dry compass
Dry compass
Card: A paper card attached to a metal circumference and to metal centre by silk threads. The paper is white with black markings graduated to points and quadrantally in degrees.
Pivot: A plain aluminium "washer" which holds the silk threads.
Needle: The eight needles, in four sets of two, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Lengths 2.75", 2.5", 2.25" & 1.75" (7.0 cm, 6.3 cm, 5.7 cm & 4.5 cm)
Card: A paper card attached to a metal circumference and to metal centre by silk threads. The paper is white with black markings graduated to points and quadrantally in degrees.
Pivot: A plain aluminium "washer" which holds the silk threads.
Needle: The eight needles, in four sets of two, are thin. They are suspended beneath the card by a different silk thread system to that of the card. Lengths 2.75", 2.5", 2.25" & 1.75" (7.0 cm, 6.3 cm, 5.7 cm & 4.5 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
ID: | ACO0873 |
---|---|
Type: | Dry compass |
Display location: | Not on display |
Creator: | Doignon, L. |
Date made: | Early 20th Century |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | Overall: 10 mm; Diameter: 200 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.