universal ring sundial
Date1800
Inventory Number7147
ClassificationSundial
Subject
Cultural Region
DimensionsOverall: 0.2 lb., 6.6 x 0.6 x 6.6 x 9.5 cm (0.1 kg, 2 5/8 x 1/4 x 2 5/8 x 3 3/4 in.)
Overall - Storage: 0.6 x 6.6 x 9.5 cm (1/4 x 2 5/8 x 3 3/4 in.)
Overall - Storage: 0.6 x 6.6 x 9.5 cm (1/4 x 2 5/8 x 3 3/4 in.)
Material
AccessoriesNone
Description2 5/8" Diameter Brass Universal Equinoctial Ring Dial
2 5/8" diameter UER Dial with the meridian ring's latitude scale divided in 1° increments from 0° to 90° for North latitudes. The time scale is divided in 30' increments. The bridge is engraved on one side with a calendar in 10 day increments. On the other side of the bridge there is a Zodiac scale. The instrument is assembled with screws and the suspension ring is not a continuous loop.,circular,The inner surface of the hour ring is divided from 1? to 24
2 5/8" diameter UER Dial with the meridian ring's latitude scale divided in 1° increments from 0° to 90° for North latitudes. The time scale is divided in 30' increments. The bridge is engraved on one side with a calendar in 10 day increments. On the other side of the bridge there is a Zodiac scale. The instrument is assembled with screws and the suspension ring is not a continuous loop.,circular,The inner surface of the hour ring is divided from 1? to 24
FunctionThis instrument is self-orienting for the measurement of time without the need of a compass.
ProvenanceDavid P. Wheatland, Topsfield, MA, 1952; gift to CHSI.
Louis Chapotot
Date: circa 1700
Accessories: Fitted case in fine condition.
Object number: 7154
Edmund Culpeper
Date: circa 1730
Accessories: Rectangular black leather covered case with dark blue velvet lining.
Object number: 7464
Nicolas Bion
Date: circa 1700
Accessories: Hardened leather case
Object number: 7465
