c1875 Pocket Prismatic Compass by J Hicks London


A nice example of a c1875 pocket Prismatic Compass by J Hicks of London.

The compass is made of blackened bronze, with a slot window that allows the viewer to see the circular magnetic floating card, which is coloured bright green, but is not luminous. It is printed with the maker’s details of J. HICKS – 8 HATTON GARDEN, LONDON. The prism on the side allows the viewer to also take bearings when using the tall folding point sight. It has the number 678 engraved on the top. Condition is very good.

The compass is based on the prismatic compass by Charles Schmalcalder (British patent in 1812), which lets the user read the card while sighting a distant object. It was termed an Improved Hutchinson Prismatic Compass, said to be lighter and less bulky ‘than the old form’ and was adopted by the various branches of the British and Foreign Services.

Size: 10 x 7 x 2.4 cm (4 x 2 ¾ x 1 inches)
Weight: 188 g