Compasses & Binnacles
A gyrocompass is similar to a gyroscope. It is a non-magnetic compass that finds true north by using an (electrically powered) fast-spinning wheel and friction forces in order to exploit the rotation of the Earth. [Source: Wikipedia]
The first self north adjusting gyrocompass was invented in 1906. [Source: Wikipedia]
A ship's gyrocompass typically drives one or more repeaters in which the compass card position is controlled by a servo motor.
Large magnetic compasses will typically be found in a ship's binnacle, however smaller ones may be mounted in a wooden box.
Vintage Sestrel Hand Bearing Compass
Vintage Sestrel hand bearing compass by Henry Browne & Son Ltd. in teak or oak carry box. Circa. mid 20th Century.
Compass, Bergen Nautik
Liquid filled compass manufactured by Bergen Nautik, Norway. Last serviced in January, 1964.
This item is no longer available.