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Bearing Plate
Bearing plate
A heavy white metal ring graduated to 360 degrees on upper surface and edge. Fitted with a single cross member which has the alidade pivoted at its centre. The alidade sights consist of two hinged vanes; fore sight is a frame with sighting thread, the other is a slit sight.
O.A. Height 3.9" (10.0 cm)
A heavy white metal ring graduated to 360 degrees on upper surface and edge. Fitted with a single cross member which has the alidade pivoted at its centre. The alidade sights consist of two hinged vanes; fore sight is a frame with sighting thread, the other is a slit sight.
O.A. Height 3.9" (10.0 cm)
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Object Details
| ID: | ACO0546 |
|---|---|
| Type: | Bearing Plate |
| Display location: | Not on display |
| Creator: | Unknown |
| Date made: | 1944 |
| Credit: | National Maritime Museum, Greenwich, London, Admiralty Compass Observatory |
| Measurements: | Overall: 35 mm; Diameter: 205 mm |