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A fine George II cased set of mathematical drawing instruments Thomas Heath, London, circa 1740 The lower tier comprising: A large mathematical ...
A Victorian brass 2.75-inch refracting telescope W. Watson and Sons, London, late 19th century The 37.5 inch tube with rack and pinion focus adj...
A George III lacquered brass solar microscope William and Samuel Jones, London, circa 1800 The square brass plate signed W & S JONES, 135 Ho...
A Cary/Gould-type lacquered brass portable compound microscope Cary, London, circa 1825 The part-tapered tube screw-fitting at the objective end...
A Cary/Gould-type lacquered brass portable compound microscope Unsigned, circa 1840 The part-tapered tube screw-fitting at the objective end int...
A late Victorian brass binocular microscope Dring and Fage, London, late 19th century With rack and pinion coarse and fine bottom-screw focus ad...
A late Victorian brass monocular microscope Unsigned, late 19th century With fine screw focus adjustment to the body tube and rack-and-pinion co...
Two similar Victorian lacquered brass field microscopes Both unsigned, late 19th century Each of stepped cylindrical form with telescopic body t...
A late Victorian lacquered and patinated brass portable monocular microscope Negretti and Zambra, London, late 19th century The body tube slidin...
A late Victorian lacquered and patinated brass monocular microscope Negretti and Zambra, London, late 19th century With rack and pinion coarse a...
A late Victorian lacquered and patinated brass monocular microscope Henry Hughes and Son, London, late 19th century The sliding body tube with f...
A German black crackle-finish binocular dissecting microscope Carl Zeiss, Jena, circa 1920 The short binocular body tube with paired objective l...
Two mahogany cased Sikes' Hydrometers Dring and Fage, London, and T. O. Blake, London, late 19th century Each with calibrated brass float, bon...
A George I cased set of cut steel and brass portable coin scales Timothy Roberts, London, circa 1725 With finely turned and filed polished steel...
A George IV brass pantograph William and Samuel Jones, London, circa 1825 The pivoted frame with circular purple velvet covered anchor-weight ...
A George III small brass pantograph William and Samuel Jones, London, circa 1800 The pivoted frame with circular lead anchor-weight fitted to ...
A group of three George IV drawing Instruments William and Samuel Jones, London, circa 1825 The first a circular brass protractor with four-sp...
A rare early Victorian W. and A. Smith type brass pantograph William and Andrew Smith, London, circa 1840 Constructed from three rectangular and...
An ebony and patinated brass navigational octant Henry Hughes and Son, London, circa 1870 The 11 inch frame incorporating central T-shaped hand-...
A rare Victorian mahogany mercury cistern tube marine stick barometer with sympiesometer D. Mc.Gregor and Company Limited, Glasgow, Greenock and ...
A William IV mahogany mercury stick barometer Thomas Jones, London circa 1830 With moulded upstand and cavetto moulded cornice above rectangular...
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