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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...
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...
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...
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 ...
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...
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...
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