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Two Brown gyro compasses, both mounted in the same vertical gimbal0

1903-1960

Brown gyro compass

1903-1960

Gyro wheel

1914-1948

The original Gyroscopic compass

1914-1915

Original Gyro compass

1916

Mk. E-1 minor gyro compass with mahogany mounting pad

1945-1954

Gyro compass switchboard type A no.261

1940-1948
Gyro compass course recorder type B no.540, by S G Brown Limited, London, England, 1940-1948. Used with gyro compass switchboard, type A (1948-365).

Gyro compass course recorder type B no.540

1940-1948
Master unit, Mark I, from an RAF Distant Reading Gyro-Magnetic Compass, composed of a magnet controlled directional gyroscope and magnetic corrector box, invented by Philip Andrew Cooke and Leonard Charles Bygrave, 1926, unsigned, British, 1940-1945

Master unit

1940-1945