Magnet holder - aircraft compass

Magnet holder, compass corrector in brass. Corrector (four needles) being held in enclosed box at bottom of tube. Needles can be turned in azimuth by alan key arrangement.
One box of lugs and screws.

Object Details

ID: ACO0379
Type: Magnet holder - aircraft compass
Display location: Not on display
Creator: Air Ministry
Date made: Unknown
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 60 mm x 82 mm x 82 mm
Parts: Magnet holder - aircraft compass