Scottish Rite Masonic Museum & Library

Mariner's Compass or universal equinoctial or gnomonic solar watch and sundial with Case
1816-1850
Thomas Jones
England: London
Brass, etc.
a: 1-1/2"h x 4-1/4"w x 4-1/4"d; b: 2-1/4"h x 5"w x 5"d
Gift of George A. Newbury
83.17a-b

a. Mariner's compass: A universal equinoctial or gnomonic solar watch with hinged circular dial ring and folding brass gnomon, combining a magnetic compass and extremely accurate sundial.; brass with lift-arm for determining hour of the day; inner ring marked in degrees, months, names of signs of zodiac; moveable quadrant attachment; two levels implanted in body of compass; marked "N, E, S, W" and "NE, NW, SE, SW;" three screw attachments; marked on outer ring "Thomas Jones/ 62 Charing Cross/ London." b: black triangular sharkskin covered case