universal ring sundial
Datecirca 1863
Inventory Number7140
ClassificationSundial
Subject
Maker
Negretti and Zambra
1850 - circa 1935
Place of Origin
DimensionsOverall: 0.7 lb., 10.2 x 0.7 x 10.2 x 12.9 cm (0.3 kg, 4 x 1/4 x 4 x 5 1/16 in.)
Overall - Storage: 0.7 x 10.2 x 12.9 cm (1/4 x 4 x 5 1/16 in.)
Overall - Storage: 0.7 x 10.2 x 12.9 cm (1/4 x 4 x 5 1/16 in.)
Material
AccessoriesNone
Description4" Diameter Brass Universal Equinoctial Ring Dial with Quadrant by Negretti & Z
4" diameter UER Dial with the meridian ring's latitude scale divided in 1° increments from 0° to 90° for both North and South latitudes. The reverse side of the meridian ring has an altitude scale divided in 1° increments from 0° to 90°. The time scale is divided in 15' increments. The bridge is engraved on one side with a calendar in 5 day increments. On the other side of the bridge there is a declination scale in 1° increments. March 10 is the date for 0° declination. The instrument is assembled with screws and the suspension ring is a continuous loop.,circular
4" diameter UER Dial with the meridian ring's latitude scale divided in 1° increments from 0° to 90° for both North and South latitudes. The reverse side of the meridian ring has an altitude scale divided in 1° increments from 0° to 90°. The time scale is divided in 15' increments. The bridge is engraved on one side with a calendar in 5 day increments. On the other side of the bridge there is a declination scale in 1° increments. March 10 is the date for 0° declination. The instrument is assembled with screws and the suspension ring is a continuous loop.,circular
SignedSigned "NEGRETTI & ZAMBRA, 1, HATTON GARDEN, LONDON." on back of the inner ring.
Curatorial RemarksNegretti & Zambra was located at 1 Hatton Garden from 1859-1867 per Clifford. Appraisal by Brieux, 9/24/84: $1000
FunctionThis instrument is self-orienting for the measurement of latitude and time without the need of a compass.
ProvenanceDavid Wheatland purchased from Sotheby's, London, March 13, 1967 (lot 33). Donated to CHSI 1985.
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
Spanish
Date: 1725-1775
Accessories: early photo shows case (currently missing)
Object number: 7904
