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A George III mahogany portable apothecaries dispensing cabinetUnsigned, late 18th centuryThe lid opening to reveal five compartments containing tw...
A rare late Victorian or Edwardian electro-medical panel for electric shock therapiesKarl Friedrich Schall, London, circa 1900With heavy black mar...
Y Two Victorian medical electromagnetic shock generators of magnetosOne by W. Matthews, London, late 19th centuryThe first with silvered brass fra...
A rare selection of Regency and Victorian laboratory electrostatic demonstration apparatusThe friction plate generator stamped for J.H. Fox, early...
Three Wimshurst pattern electrostatic generating machines, Unsigned, early 20th centuryThe first with twin contra-rotating glass discs applied wit...
A large aluminium and Perspex Van de Graaff electrostatic generatorW.B. Nicholson Scotland, mid 20th centuryConstructed with two-part aluminium sp...
A collection of six laboratory electric induction coilsUnsigned, early 20th centuryThe largest with 14 inch long by 7.5 inch diameter black cellul...
A large laboratory electric induction coil, W. and J. George and Becker Limited, mid 20th century
A large laboratory electric induction coilW. and J. George and Becker Limited, Birmingham and London, mid 20th centuryEnclosed within a 4.25 inch ...
A Lord Kelvin type multicellular voltmeter, Kelvin and James White Limited, Glasgow, circa 1900
A Lord Kelvin type multicellular voltmeterKelvin and James White Limited, Glasgow, circa 1900The rectangular black japanned cast iron case with cy...
A set of six blown glass Geissler tubesUnsigned, late 19th centuryEach of differing complex shaped tube design with loop terminals and spike elect...
An ‘Excelsior’ telegraphic date and time stamping machine, Gamewell, New York, early 20th century
An Excelsior telegraphic date and time stamping machineGamewell Fire Alarm Telegraph Company, New York, early 20th centuryThe clockwork driven-mac...
A rare WWI mahogany cased part B trench forward spark wireless radio transmitterLavington, London, circa 1915The rectangular grey painted fabric c...
An Air Ministry flameproof Morse key with spark indicator, S.G. Brown Limited, London, circa 1910
A rare Air Ministry flameproof Morse key with spark indicatorS.G. Brown Limited, London, No. 1969 circa 1910The beam fitted with Bakelite knob and...
Two rare pilot's wrist mounted 'aero hypsometers' J.H. Steward Limited, London, circa 1915 Each with circular silvered dial inscribed J.H...
Two WWI military issue refracting telescopes and one other, various makers, early 20th century
Two WWI military issue refracting telescopes and a presentation telescopeVarious makers, early 20th century Each 2 inch three draw with shuttered ...
A collection of pocket sighting compasses, inclinometers and other related instrumentsVarious makers, late 19th century and laterComprising a Fren...
Four automobile barometers, an anti U-boat timer and a ship's trim spirit level, early 20th century
Four automobile aneroid barometers/altimeters, an anti-submarine patrol timer and a ship's trim spirit level Various makers, first half of the 20t...
A group of five gilt brass aneroid pocket barometers Various makers, late 19th and early 20th century Each with circular silvered registe...
A French aneroid ‘Holosteric’ barometer with thermometer , Retailed by Ducatillon, Paris, circa 1860
A French aneroid Holosteric barometer with thermometerRetailed by Ducatillon, Paris, circa 1860The 4.75 inch circular silvered register with open ...
A collection of aneroid barometers and in varying states of repair, late 19th and early 20th century
A collection of aneroid barometers and in varying states of repairVarious makers, late 19th and early 20th centuryComprising two gilt brass cased ...
An oak cased barograph with thermometer G. Lee and Son, Portsmouth, early 20th century The mechanism with seven segment aneroid chamber connected ...
A Bourdon type carved ebonised aneroid wall barometer, Jules Richard, Paris, Late 19th century
A French Bourdon pattern carved ebonised aneroid wheel barometerJules Richard, Paris, Late 19th centuryWith visible gilded mechanism incorporating...
A stick barometer with isothermal altitude scale, Short and Mason, London, early 20th century
An unusual mercury stick barometer with isothermal altitude scaleShort and Mason Limited, London, first half of the 20th centuryThe oak wall panel...
A Victorian oxidised brass Fortin type forecasting barometer, George S. Wood, Liverpool, circa 1880
Y A fine Victorian oxidised brass Fortin type mercury forecasting barometerGeorge S. Wood, Liverpool, circa 1880Constructed with central large-bor...
A Regency mahogany mercury cistern tube marine stick barometerJohn Augustus, Falmouth, circa 1820 With brass suspension ring above hinged rectangu...
Y A Victorian rosewood mercury marine stick barometerCasella, London, circa 1860With suspension ring to top over arched bevel-glazed canted double...
A George III mahogany mercury stick barometerPedraglio, London, circa 1810With open triangular pediment above line-edged glazed door enclosing rec...
A George III mahogany mercury stick barometerCharles Aiano, London, circa 1810With open triangular pediment above line-edged glazed door enclosing...
A George III mahogany mercury stick barometerJonathan Illingworth, Hallifax, circa 1800With elaborate 'whales tail' crest over glazed door enclosi...
A George III mahogany mercury stick barometerUnsigned, Late 18th centuryWith brass finials to the pagoda superstructure over glazed paper scales c...
A French Louis XVI giltwood mercury wall barometerUnsigned, late 18th centuryWith mercury syphon tube and 8 inch circular white painted register a...
Y A fine Regency mahogany bowfronted cistern tube mercury stick barometer Dollond, London, early 19th century With swan-neck pediment and cavetto ...
A Regency mahogany mercury stick barometer, William Harris and Company, London, early 19th century
A Regency mahogany mercury stick barometerWilliam Harris and Company, London, early 19th centuryWith arched glazed door enclosing silvered Vernier...
Y A Victorian rosewood mercury stick barometerG. Braham, Bath, circa 1850The arch-glazed canted double ivory Vernier scales calibrated in barometr...
A 14 inch library table globe George Philip and Son Ltd, London circa 1920.The sphere applied with twelve coloured printed gores incorporating ova...
An unusual 4 inch celestial globe C. Baker, London, early 20th centuryThe sphere applied with twelve printed gores marked with principal constella...
Two George III brass refracting telescopes Jesse Ramsden, London, late 18th century The first 1.5 inch two-draw with shuttered eyepiece a...
Three brass refracting telescopesOne signed for Shuttleworth, London, late 18th or early 19th centuryThe first 2 inch with four draws signed Shutt...
Two brass and leather refracting telescopesOne by Dollond, London, 20th centuryThe first grey oxidised brass 2.75 inch five draw with focus lines ...
A late Victorian lacquered and patinated brass compound monocular microscopeUnsigned, Late 19th centuryThe tube with rack and pinion coarse and fi...
An Austrian lacquered brass compound monocular microscope C. Reichert, Vienna, circa 1900The telescopic tube with pivoted fine top-screw adjustmen...
A Victorian lacquered brass binocular microscopeM. P. Tench, London, circa 1870The bifurcated tube of Wenham type with rack and pinion coarse and ...
Two lacquered brass compound drum microscopesBoth unsigned, mid to late 19th centuryEach focussing via body tube sliding within larger diameter sl...
Two identical French lacquered brass student's portable compound microscopesUnsigned, late 19th centuryEach with rack and pinion focussing to the ...
An unusual tradesman's miniature cut-away model of a Pulsometer steam pumpThe Pulsonometer Engineering Company Limited, London, circa 1880Finely c...
Y George III shagreen etui of drawing instrumentsJ. Bleuler, London, circa 1800 The tapered case with hinged lid enclosing fitted interior contain...
A German Augsburg pattern gilt brass portable equinoctial compass sundialLudwig Theodor Muller, Augsburg, mid 18th century The recessed silvered c...
A French silver Butterfield portable horizontal compass sundial Michael Butterfield, Paris, circa 1700The elongated octagonal plate with four hour...
A rare Charles I brass double-horizontal sundial plateElias Allen, London, circa 1630-40The 13 inch octagonal plate with inner curved 4-12-8 chapt...
A George III brass pocket sundial and a compass, the sundial signed C. Stedman, London, circa 1800
A George III brass portable compass sundial and a pocket compassThe sundial signed for C. Stedman, London, circa 1800The cylindrical case inset wi...
An English brass portable universal inclining compass sundialUnsigned, early 19th centuryThe recessed silvered compass centre with radial lines en...
A rare English simple altitude ring or 'poke' portable sundialUnsigned, circa 1700Formed as a ring 1.5 inches in diameter fitted with moveable cen...
A silver and tortoiseshell triple-cased verge pocket watchEdward Prior, London, circa 1875 The gilt full plate single fusee movement with four col...
A George I verge pocket watch movement and dial, John Bowen and John Masters, Bristol circa 1720
A fine George I verge pocket watch movement and dial John Bowen and John Masters, Bristol circa 1720 The full plate gilt movement with tulip pilla...
A miniature silver cased verge pocket watchG.H. Warren, London, 1840The gilt full plate single fusee verge movement with four Egyptian pillars inc...
Five verge pocket watch movementsVarious makers, late 18th century and laterComprising five gilt full plate single fusee movements each with four ...
Six lever pocket watch movementsVarious makers, 19th centuryComprising five gilt four plate fusee movements each with four columnar pillars and sp...
Three chronograph watch movements and another quarter-repeating, all unsigned, Swiss, 20th century
Three chronograph pocket watch movements and a quarter-repeating movementAll unsigned, Swiss, 20th centuryIn varying states of repair/completeness...
A lever pocket chronograph pocket watch movement and dialDent, London, early 20th centuryThe frosted three-quarter plate jewelled going-barrel key...
A Victorian silver keyless lever pocket chronograph with unusual dial, Henry Potter, Red Hill, 1883
A Victorian silver cased keyless lever centre seconds pocket chronograph with unusually signed dialHenry Potter, Red Hill, 1883The three-quarter p...
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