ring sundial
Date1600
Inventory Number7128
ClassificationSundial
Subject
Maker
English
Place of Origin
DimensionsOverall: 0.1 lb., 4.5 x 1.2 x 4.4 x 5.6 cm (0.1 kg, 1 3/4 x 1/2 x 1 3/4 x 2 3/16 in.)
Overall - Storage: 1.2 x 4.5 x 5.6 cm (1/2 x 1 3/4 x 2 3/16 in.)
Overall - Storage: 1.2 x 4.5 x 5.6 cm (1/2 x 1 3/4 x 2 3/16 in.)
Material
AccessoriesNone
Description1 3/4" Diameter Brass Ring Dial (Poke) with one declination and time scale
1 3/4" diameter brass Ring Dial with a declination scale divided into four divisions per month on the exterior surface. The time scale in Arabic numerals is subdivided into 1 hour increments on the interior surface of the ring. The suspension ring is not continuous. The dial is designed for a latitude of approximately 52° (London) with a vernal equinox of approximately 10 March.,circular
1 3/4" diameter brass Ring Dial with a declination scale divided into four divisions per month on the exterior surface. The time scale in Arabic numerals is subdivided into 1 hour increments on the interior surface of the ring. The suspension ring is not continuous. The dial is designed for a latitude of approximately 52° (London) with a vernal equinox of approximately 10 March.,circular
SignedSigned "SHW" vertically on inside of ring and horizontally on exterior of ring
Curatorial RemarksAppraised by Brieux, 9/24/84: $400 E. Weil dated this instrument as; "English, late XVIth or early XVIIth century".
FunctionTime-finding by measurement of the sun's altitude, corrected for declination.
ProvenanceDavid Wheatland purchased from Ernst Weil, London, 1952. Donated to CHSI, 1985.
