Cordys

An 18thC brass 9-inch universal equinoctial ring dial [sundial] by W. & S. Jones

Estimate: $1,600 - $3,000


Lot Description

An 18thC brass 9-inch universal equinoctial ring dial [sundial] by W. & S. Jones, Holborn, London, circa 1790, two concentric brass rings folding flat, the chapter ring with hours I-XII-I-XII divided to 1 minute, equinoctial ring with degree scale in two quadrants and declination scale to reverse, the bridge with sliding pinhole gnomon on calendrical and zodiacal scales. Provenance: The H.N.E Sheppard Estate Collection.