Vertical card type aero compass - aircraft

Compass as used in aeroplanes for a stand-by or emergency compass in the event of repeating one breaking down.
Vertical card-type.

Object Details

ID: NAV0278
Type: Vertical card type aero compass - aircraft
Display location: Not on display
Creator: Unknown
Date made: circa 1948
Credit: National Maritime Museum, Greenwich, London
Measurements: Overall: 13 mm x 74 mm x 77 mm x 44 mm