31st Oct, 2012 12:00
Maritime and Scientific Models, Instruments & Art (Cochrane)
212
[M] AN 18TH-CENTURY MAHOGANY AND BRASS SURVEYOR'S...
AN 18TH-CENTURY MAHOGANY AND BRASS SURVEYOR'S LEVEL BY COTTAM & HALLEN, LONDON
comprising a lacquered-brass quadrant, signed and inscribed Cottam & Hallen Winsley Strt, London No 180, the scale divided 12-0-12 and inscribed to left Inches Full In 3 Feet, and to the right Inches Rise In 3 Feet, thumb-screw retention, the crossbar with folding pin-hole and cross-hair sights, shaft terminating in a sharp point with foot plate; accompanied with matching surveyor's staff -- dimensions overall 56½ x 54in. (143.5 x 137cm.)
(2)
comprising a lacquered-brass quadrant, signed and inscribed Cottam & Hallen Winsley Strt, London No 180, the scale divided 12-0-12 and inscribed to left Inches Full In 3 Feet, and to the right Inches Rise In 3 Feet, thumb-screw retention, the crossbar with folding pin-hole and cross-hair sights, shaft terminating in a sharp point with foot plate; accompanied with matching surveyor's staff -- dimensions overall 56½ x 54in. (143.5 x 137cm.)
(2)
Sold for £992
Estimated at £500 - £800
(inc. buyer's premium of 24%)
AN 18TH-CENTURY MAHOGANY AND BRASS SURVEYOR'S LEVEL BY COTTAM & HALLEN, LONDON
comprising a lacquered-brass quadrant, signed and inscribed Cottam & Hallen Winsley Strt, London No 180, the scale divided 12-0-12 and inscribed to left Inches Full In 3 Feet, and to the right Inches Rise In 3 Feet, thumb-screw retention, the crossbar with folding pin-hole and cross-hair sights, shaft terminating in a sharp point with foot plate; accompanied with matching surveyor's staff -- dimensions overall 56½ x 54in. (143.5 x 137cm.)
(2)
comprising a lacquered-brass quadrant, signed and inscribed Cottam & Hallen Winsley Strt, London No 180, the scale divided 12-0-12 and inscribed to left Inches Full In 3 Feet, and to the right Inches Rise In 3 Feet, thumb-screw retention, the crossbar with folding pin-hole and cross-hair sights, shaft terminating in a sharp point with foot plate; accompanied with matching surveyor's staff -- dimensions overall 56½ x 54in. (143.5 x 137cm.)
(2)
Auction: Maritime and Scientific Models, Instruments & Art (Cochrane), 31st Oct, 2012
