Compass, Pilots Repeater Indicator Mk I RAF Ref 6A/1584, Distant Reading Compass

Here is a WWII-era Compass, Pilots Repeater Indicator Mk I Stores Ref 6A/1584, a component of the Distant Reading Compass system, as use in early versions of large British RAF aircraft such as the Avro Lancaster, Vickers Wellington, and Short Sunderland (see image showing the location of the indicator from the Lancaster Pilots Notes from 1944). The serial number is evidence of it's year of manufacture of 1941. Here's a bit of history from the Rochester Avionics Archive: The Distant Reading Compass was standard equipment in most multi-engined aircraft in the RAF throughout World War II until it was replaced by the Sperry ‘Gyrosyn’ compass. It consists of a master unit containing both the gyro and magnetic elements normally stowed in a part of the aircraft away from large masses of magnetic material which would distort the Earth’s magnetic field. This master unit feeds, through an electrical transmission system, repeater compass cards on the pilot’s and navigator’s panels and wherever h