Dry card compass in a brass bowl with a brass lid. The card is graduated to 32 points and quadrantally in degrees, with the north and east points decorated. The copmpass is part of a set of instruments belonged to Edward Newell Harrison, who was clerk of HMS 'Assistance' during the 1850-51 search for Franklin. The set comprises a small magnetic compass for direction finding, and a box sextant (NAV1220) and artificial horizon (NAV0019), used together for making observations while carrying out surveying work on land.