Liquid compass card

Liquid compass card

Card: A mica ring 1.75" (4.5 cm) wide. The card is painted grey with black markings, graduated to 32 points and to 360 degrees. There is a second set of graduations to 360 degrees (mirror image) from the South point. Card attached to an unpainted white metal float 4.25" (10.8 cm) diameter at the centre.

Neelde: Unsighted, contained within the float.

Pivot: High domed conical pivot cup with jewel at top, carried in centre of float.

In fitted wooden box 9.25" x 9.25" x 3.0" (23.5 x 23.5 x 7.5 cm)

Object Details

ID: ACO0878
Type: Liquid compass card
Display location: Not on display
Creator: Doignon, L.
Date made: 1928
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 75 mm x 232 mm x 234 mm
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