A French silver Butterfield dial, Michael Butterfield, Paris, circa 1700, the elongated octagonal

A French silver Butterfield dial, Michael Butterfield, Paris, circa 1700, the elongated octagonal plate with four hour scales 52 -4-12-8, 49 -IIII-XII-VIII, 46 -4-12-8 and 43 -IIII-XII-VIII, around a compass with scale divided into sixteen sectors, pivoted bird engraved adjustable gnomen calibrated 40-60, and signature Butterfield A Paris, the rear engraved with the latitudes of 36 European cities around a foliate engraved spring plate for the folding gnomen, 8cm long, in original green velvet lined case.. Provenance: The Estate of the late Professor Rupert Hall and Mrs Hall. Visit www.dnfa.com for condition reports.