Pocket compass
Date19th century
Object number00040568
NameCompass
MediumWood, glass, metal, paper, ink
Dimensions20 x 62 x 58 mm
ClassificationsTools and equipment
Credit LineANMM Collection
DescriptionThis mahogany-cased pocket compass was made in the 19th century. A compass is a navigational instrument used to establish direction relative to the magnetic poles of the Earth.HistoryOne of the earliest recorded uses of the magnetic compass was reported in the 12th century in the English Channel. Prior to the introduction of the compass, navigation at sea was primarily determined by the sighting of landmarks. With the gradual perfection of compasses and associated understanding of the effects of magnetic variation and deviation, the compass became a primary instrument for navigation on both land and sea.
The pocket compass was developed from a need to increase portability, resulting in a model that could be carried and operated in one hand.SignificanceThe compass is typical of small portable compasses carried by 19th century surveyors.
19th century
1844 - 1865
1890-1910
c 1830
