Back
AN ENGLISH ALTITUDE THEODOLITE
WILLIAM WILTON, CORNWALL, CIRCA 1830
circular plate with extended arms to carry open sights, in the centre is a silvered compass, underneath a glazed case, flanked by two spirit levels and a scale divided into quadrants of 0-90, corresponding with each point of the compass, needle locking device, and a raised scale of 0-360, glass cover. The semicircle above is engraved on the arc with 0-90-0 which is engraved to its outer edge. An index arm is mounted at the centre of the semi-circle, with vernier and carrying the sighting arm with a bubble level mounted centrally between the sights
Catalogue note: William Wilton is listed as an horologist and instrument maker at St. Day, Cornwall, between 1830 - 1851, and at Market Place, Camborne from 1852 - 1856.
An identical instrument by William Wilton was displayed in the Captain Cooks Exhibition at the Science Museum, Melbourne
Sold for $1,500
Lot 233
WILLIAM WILTON, CORNWALL, CIRCA 1830
circular plate with extended arms to carry open sights, in the centre is a silvered compass, underneath a glazed case, flanked by two spirit levels and a scale divided into quadrants of 0-90, corresponding with each point of the compass, needle locking device, and a raised scale of 0-360, glass cover. The semicircle above is engraved on the arc with 0-90-0 which is engraved to its outer edge. An index arm is mounted at the centre of the semi-circle, with vernier and carrying the sighting arm with a bubble level mounted centrally between the sights
Catalogue note: William Wilton is listed as an horologist and instrument maker at St. Day, Cornwall, between 1830 - 1851, and at Market Place, Camborne from 1852 - 1856.
An identical instrument by William Wilton was displayed in the Captain Cooks Exhibition at the Science Museum, Melbourne
Estimate $1,500 - $2,600
Asian Art, Classic Furniture & Objects
AUCTION
Sale: LJ8080
12:00pm - 25 October 2015
333 Malvern Rd, South Yarra 3141
VIEWING
21 October 9am-8pm
22-23 October 10am-4pm
24 October 10am-5pm
CONTACT
Chiara Curcio
chiara.curcio@leonardjoel.com.au
SIMILAR ITEMS
Lot 124
A RHINOCEROUS HORN
Estimate: $40,000-60,000
Lot 400
MATHEWS, GREGORY MACALISTER. (1876-1949) THE BIRDS OF AUSTRALIA
Estimate: $40,000-60,000
Lot 188
A LARGE CHINESE POTTERY FIGURE OF A GROOMING COURT LADY TANG DYNASTY (618-906)
Estimate: $35,000-45,000
Lot 125
A RHINOCEROUS HORN
Estimate: $25,000-35,000