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Lot 555
FINE RICHARD EBSWORTH BRASS THEODOLITE, 1819-1826, of 68 Fleet St, London, the 9in. telescope and bubble level mounted on two brackets above racked half circle of degrees and horizontal degree circle, scales and vernier, silvered brass compass rose, on staff-head mount with three leveling screws, 17cms high, fitted mahogany box; together with a German pocket microscope, 5cms high, boxed with instructions (2) Provenance: private collection, consigned via our Cardiff office Auctioneer's Note: Richard Ebsworth traded from three addresses in Fleet St. from c. 1819 to 1835 and is listed as being a Mathematical instrument maker, Optical instrument maker, Optician and Philosophical instrument maker.
Lot 77
WILLIAM WILTON OF CORNWALL; a good and rare mahogany cased lacquered brass theodolite with silvered signed dial, complete with brass bracket stand, sliding eye pieces, screws, etc, the case also containing three brass feet four a tripod and partial original paper label.Additional InformationCase with general wear, some scuffs, scrapes, instruments with some tarnish and discolouration, some light general wear, approximately half of the paper label remains.
Lot 452
A Cook Troughton & Simms theodolite in wooden box CONDITION REPORT: The spirit levels are intact. All of the moving parts seem to work as best as I can tell. I did not notice any moisture build-up with the lens. When looking down the lens there are some very small black spots visible. See additional images.
Lot 450
SURVEYING. A THEODOLITE, CASTELLA LONDON, 9144, SECOND QUARTER 20TH C, WITH 1.5" TELESCOPE, TWO VERNIERS, MICROMETER ADJUSTMENT, ONE (OF TWO) MAGNIFIERS AND BUBBLE LEVEL, ON THREE ADJUSTABLE FEET WITH STAFF HEAD MOUNT, PAINTED LIGHT GREY, LENS CAP, 30CM H, IN FITTED TEAK BOX WITH PRINTED INSTRUCTIONS AND PLASTIC TRADE LABEL OF THE MISCELLANEOUS DISPOSALS SYNDICATE LIMITED 41 ST JAMES' SQUARE LONDON TO THE UNDERSIDE OF THE LID In well used condition, the paint extensively worn and scratched, much old accretion of dirt and grime. Optically, hairline and dirt and possibly fungal growth between elements. Interior of box dirty and stained, exterior typically knocked and scratched. Requires thorough cleaning and overhaul but basically complete and unrestored
Lot 573
SURVEYING. A THEODOLITE, CASTELLA LONDON, 9144, SECOND QUARTER 20TH C, WITH 1.5" TELESCOPE, TWO VERNIERS, MICROMETER ADJUSTMENT, ONE (OF TWO) MAGNIFIERS AND BUBBLE LEVEL, ON THREE ADJUSTABLE FEET WITH STAFF HEAD MOUNT, PAINTED LIGHT GREY, LENS CAP, 30CM H, IN FITTED TEAK BOX WITH PRINTED INSTRUCTIONS AND PLASTIC TRADE LABEL OF THE MISCELLANEOUS DISPOSALS SYNDICATE LIMITED 41 ST JAMES' SQUARE LONDON TO THE UNDERSIDE OF THE LID In well used condition, the paint extensively worn and scratched, much old accretion of dirt and grime. Optically, hairline and dirt and possibly fungal growth between elements. Interior of box dirty and stained, exterior typically knocked and scratched. Requires thorough cleaning and overhaul but basically complete and unrestored
Lot 119
A Cooke Troughton and Simms brass transit theodolite. English, mid 20th century,signed Cooke, Troughton & Simms Ltd, at York, England, with sighting telescope, silvered verniers and scales with magnifiers, on staff-head mount with three levelling screws and oak stand, 13in (33cm) high For further information on this lot please visit Bonhams.com
Lot 120
A Baker brass transit theodolite, English, mid 19th century,signed Baker 211 Holborn, the sighting telescope mounted by two brackets, half circle of degrees, silvered compass with horizontal circle of degrees with silvered scale and verniers, on four levelling screws, in mahogany case with leather outer case and tripod, the telescope 12 1/2in (32cm) long For further information on this lot please visit Bonhams.com
Lot 122
A Gurley brass theodolite, American, third quarter of the 19th century,signed W & E Gurley, Troy, the sighting telescope mounted with bubble level and vertical circle of degrees, above silvered compass rose, staff-head mount and four levelling screws, in fitted mahogany case with trade label, 12 1/2in (32cm) high For further information on this lot please visit Bonhams.com
Lot 123
A George Adams brass theodolite, English,signed G. Adams London, the telescope supported by two brackets above racked half circle of degrees with rack and pinion focusing, horizontal circle of degrees centered by compass rose on staff-head mount, 16in (41cm) high For further information on this lot please visit Bonhams.com
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2335 item(s)/page