ring sundial
Datedate 1696
Inventory Number7126
ClassificationSundial
Subject
Maker
English
Place of Origin
DimensionsOverall: 0.1 lb., 4.4 x 1.4 x 4.4 x 5 cm (0.1 kg, 1 3/4 x 9/16 x 1 3/4 x 1 15/16 in.)
Overall - Storage: 1.4 x 4.4 x 5 cm (9/16 x 1 3/4 x 1 15/16 in.)
Overall - Storage: 1.4 x 4.4 x 5 cm (9/16 x 1 3/4 x 1 15/16 in.)
Material
AccessoriesNone
Description1 5/8" Diameter Brass Ring Dial (Poke) with two declination and time scales
1 5/8" diameter brass Ring Dial. Two declination scales one for J, F. M , S, O, N, D and the other for A, M, J, J, A are divided into four divisions per month on the exterior surface. Two time scales in Arabic numerals subdivided into 1/2 hour increments are on the interior surface of the ring. The ring is made from a flat strip of brass soldered to form a circle. The dial is designed for a latitude of approximately 52° (London) with a vernal equinox of approximately 10 March.,circular
1 5/8" diameter brass Ring Dial. Two declination scales one for J, F. M , S, O, N, D and the other for A, M, J, J, A are divided into four divisions per month on the exterior surface. Two time scales in Arabic numerals subdivided into 1/2 hour increments are on the interior surface of the ring. The ring is made from a flat strip of brass soldered to form a circle. The dial is designed for a latitude of approximately 52° (London) with a vernal equinox of approximately 10 March.,circular
Curatorial RemarksAppraised by Brieux, 9/24/84: $500.
FunctionTime-finding by measurement of the sun's altitude, corrected for declination.
ProvenanceJoseph Drecker, Aachen, Germany, before 1928 (no. 91); Frederik Casparus Wieder, Noordwijk, The Netherlands, 1928; D. P. Wheatland, Topsfield, MA, 1959; gift to CHSI, ca. 1987.
