Compass card
Card for a liquid compass.
Card: A mica card attached to float by a wire complex. The card is white with black markings graduated to quarter points and quadrantally in degrees. The quadrantal markings are normal and inverted for use with a prism.
Needle: The two needles are enclosed inn tubes which are attached to the float.
length 3.8" (9.8 cm)
Pivot: The pivot is incorporated in the domed float and has a thumb screw at the top to facilitate changing the jewel.
O.A. height 2.25" 95.6 cm)
Card: A mica card attached to float by a wire complex. The card is white with black markings graduated to quarter points and quadrantally in degrees. The quadrantal markings are normal and inverted for use with a prism.
Needle: The two needles are enclosed inn tubes which are attached to the float.
length 3.8" (9.8 cm)
Pivot: The pivot is incorporated in the domed float and has a thumb screw at the top to facilitate changing the jewel.
O.A. height 2.25" 95.6 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
ID: | ACO1058 |
---|---|
Type: | Compass card |
Display location: | Not on display |
Creator: | Captain Chetwynd; Kelvin Bottomley & Baird Ltd |
Date made: | circa 1907 |
Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
Measurements: | 161 x 52 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.