Dry card compass box key

Key for the dry card compass box

Object Details

ID: ACO0105.6
Type: Dry card compass box key
Display location: Not on display
Creator: Henry Barrow & Co
Date made: 1848; Unknown
Credit: National Maritime Museum, Greenwich, London, Admiralty Compass Observatory
Measurements: Overall: 4 mm x 35 mm x 15 mm
Parts: Dry card compass