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Compass card
Card for a liquid compass.
Card for Patt 22A or 193 compass
Card: A mica card attached to the float by a wire complex. The card is white with black markings graduated to points and quadrantally in degrees. There are two quadrantal markings, one for use with a prism.
Needls: The two needles are enclosed in tubes which are attached to the float. Length 4" (10.2 cm)
Pivot: The pivot is incorparated into the float and the jewel can be removed by a screw at the top.
O.O. height 2.25" (6.5 cm)
Card for Patt 22A or 193 compass
Card: A mica card attached to the float by a wire complex. The card is white with black markings graduated to points and quadrantally in degrees. There are two quadrantal markings, one for use with a prism.
Needls: The two needles are enclosed in tubes which are attached to the float. Length 4" (10.2 cm)
Pivot: The pivot is incorparated into the float and the jewel can be removed by a screw at the top.
O.O. height 2.25" (6.5 cm)
For more information about using images from our Collection, please contact RMG Images.
Object Details
| ID: | ACO1059 |
|---|---|
| Type: | Compass card |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | circa 1924 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 65 mm x 165 mm |
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