VINTAGE WW2 RAF OBSERVER NAVIGATORS / BOMB AIMERS SIGHT COMPASS, O2A - 6A/1078, No 4 Azimuth Circle 6A/890, Air Ministry mark plaque with Kings Crown

Dated 1942 (date of the box label)

With original wooden case. 

Rare OBSERVER / BOMB AIMERS example !

Bomber Aircraft Compass as used by bomb aimers / navigators and issued by the Air Ministry, Admiralty, RAF and Royal Navy Fleet Air Arm. Used on such aircraft as Lancaster, Wellington and Sunderland. 

Observer (O) Type Compasses:-

These are primarily intended for taking bearings from aircraft. Types O2 and O3 were fixed on mountings in the Observer’s position (Standard Type O5) and bearings are taken by directing sights on an azimuth circle onto the object and reading the compass card through a reflecting prism.

Steel / brass, with original grey military paint

Used condition, with some wear, marks, scratches, marks, oxidisation and tarnishing. The compass is dry. The front securing catches are missing from the case.

The Azimuth Circle can be removed, when the left-hand leave is turned. 

Pedestal mounted bracket to the base, which can be removed by the purchaser is required.