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A Gunter's Scale and a Scale Rule English, c. 1800, unsigned, in boxwood, with Gunter's line and multiple navigation scales, with a scale rule c.1...
Two Boxwood Slide Rules by Stanley, Both English, comprising of Glaser's Textile Conversion Slide Rule, c.1905, patented 1903, no. 242, with twin ...
Two Boxwood Slide Rules by Stanley, Both English, comprising of Glaser's Textile Conversion Slide Rule, c.1920, patented 1903, no. 1052, with twin...
Two Boxwood Slide Rules by Stanley, Both English, comprising of J H Young's patent costings rule, c.1900, No. 74, with twin slides and scales for ...
Froude's Ship Displacement Slide Rule by Stanley, English, c.1900, in boxwood, single slide, double-sided with brass cursor, conversion formulae t...
A Computing Scale, by Stanley,
A Computing Scale, by Stanley, English, for measuring areas, boxwood and nickel-silver, with eight computing scale slides, in mahogany case, case ...
A Fuller Calculator Model No. 2,
A Fuller Calculator Model No. 2, English, serial no. for 1908, Stanley, spiral slide rule with inner cylinder with a scale of sines of angles, in ...
A Fine Set of Drawing Instruments by Richter, German, c.1950-60, precision instruments including mechanical parallel rule, mechanical dotting pens...
A Good Set of Drawing Instruments by Eichmuller & Co, German, in fitted hardwood case, the upper tray with mechanical dotting pens, beam compass, ...
A Stanley Magazine Case of Drawing Instruments, English, c.1880, a large, comprhensive nickel silver set in oak case, the upper tray with large pr...
A Stanley Magazine Case of Drawing Instruments, English, c.1880, a large, comprhensive nickel silver set in blond oak case, the upper tray with la...
Calculating: An Ivory Set of Napier's Bones, probably English, 19th century, a single fixed multiplier rod, eleven multiplier rods, and a broad ro...
A Rare Irish Circular Protractor by Richard Spear Irish, c.1812-1814, in brass, hand engraved and divided to half a degree, the cross bar engraved...
Irish Drawing and Measuring Instruments, a circular protractor by Thomas Mason, c.1820, in brass, divided to half a degree, engraved 'T Mason Esse...
A Fine Irish Vernier Protractor,
A Fine Irish Vernier Protractor, Irish, c.1835, signed 'Yeates & Son Dublin', in nickel silver, divided to half a degree and reading to one arc-mi...
An Early Set of Drawing Instruments by Thomas Heath, English, c. 1730-1740, black sharkskin covered case with instruments in gree velvet lined fit...
A Fine Vernier Protractor by Heath & Wing, English, c.1760, in brass, divided to one degree, twin arms reading to 5 arc-minutes by a single vernie...
A Sector and Square by Lerebours, French, early 19th century, in finely engraved brass, sector with following scales: les cordes, solides, metaux,...
Four Unusual Drawing Instruments, W V, Cooke's patent clinograph by W H Harling, no. 113, in nickel silver, mahogany and ebony, 15.3cm across; Bas...
A Fine Vernier Protractor by Adie, English, c.1850 or earlier, in brass, divided to half a degree, reading to one arc-minute by vernier, signed ' ...
Six Six-inch Ivory Sectors,
Six Six-inch Ivory Sectors, English, comprising of one signed Watkins & Hill, 5 Charing Cross, one Elliott 30 Strand, four unsigned, one with arch...
Two Fine Drawing Instruments,
Two Fine Drawing Instruments, both 19th century in nickel silver, three-legged dividers by Stanley, 13cm closed, with scissor-type parellel rule, ...
19th Century Drawing Instruments, English, c.1850, a small set in fitted red Morocco case, brass drawing pen and dividers, ivory rolling rule in c...
A Fine 19th Century Pocket Case of Drawing Instruments, English, c.1850-60, by Charles Baker, London, green rayskin case with silver fittings, con...
A Fine Vernier Protractor by Dollond, English, c.1800-1820, in brass with inlaid silver scale, folding arms operated by rackwork, divided to half ...
Two Protractors by Edward Troughton, English, c.1800-1820, both signed 'Troughton London', one semicircular, divided to half a degree internally, ...
English, c.1860, engraved in script 'Elliott, London' of typical form with geared adjustment, swing arms with steel pointers, finished in brass wi...
A Good Set of Drawing Instruments, Stanley, English, c.1900, singed to the inside of the lid 'STANLEY, GREAT TURNSTILE, HOLBORN W.C. & RAILWAY TER...
A Good & Large Set of Drawing Instruments, English, c.1880, unsigned but one set of dividers with a retail engraving for C. Baker 244 High Holborn...
A Case of Drawing Instruments, Stanley, English, c.1880, by Stanley , the French polished mahogany case with lift out tray containing proportional...
A Large Set of Drawing Instruments, Reeves & Sons, English, c.1900, label to the back of the case and many instruments signed 'REVES & SONS, Ltd, ...
Large Set of Drawing Instruments, English, c.1880, unsigned , the French polished burr walnut veneered case with German silver escutcheon and plaq...
Three Sets of Drawing Instruments, Comprising of a set by Elliot, c.1880, French polished light oak with German silver bindings, top velvet lined ...
A Small 14inch Pantograph, George Adams, English, c.1770, signed in script along the arm 'Adams No. 60 Fleet Srt London' of typical design constru...
A 'Marvel' Geometric Compass, J. F Bennett, English, c.1880, signed to the instrument and to the lid of the case 'J. F. Bennett, Patentees, Sheffi...
A Collection of Pillar compasses, including sets of brass pillar compass' and sets in German Silver, all in cases (6)
An Early 19th Century Pantograph, Dollond, English, c.1820, signed in script 'Dollond London', of standard design constructed of lacquered brass, ...
Two Good Proportional Dividers,
Two Good Proportional Dividers, English, a pair in nickel silver, c.1830, engraved 'W Harris & Co, 50 High Holborn London', in sharkskin case, div...
A Fine Magazine Case of Drawing Instruments by Stanley, English, c.1890, substantial oak case, the lid lined with watered silk with gilt trade lab...
Drawing Instruments,
Drawing Instruments, a 19th century telescopic turn-about compass in nickel silver in fitted red Morocco case, case 20.2cm, with an unusual pair o...
A Good Irish Set of Drawing Instruments c. 1860, nickel-silver bound burr walnut case with three trays of instruments in nickel-silver, steel and ...
Stanley's 13inch Magazine Presentation Case of Drawing Instruments, English, Late victorian, stamped to the inside of the lid 'STANLEY, GREAT TURN...
Large Fowlers Calculator, with a Military Compass, the slide rule Englsh, c.1910, nickel plated with glass cover, paper scale printed 'Fowlers Mag...
A 4in French Theodolite by Morin, Paris, French, c.1870, signed to the silvered compass face H Morin 3 Rue Boursault, a Pais' on three screw feet,...
Brunton's Pocket Transit Compass Clinometer, American, mid 20th century, engraved ' D W Brunton's Pocket Transit Wm Ainsworth & Sons Manufacturers...
A Surveying Aneroid Barometer, Stanley, English, c.1900, signed to the face 'Stanley, Great Turnstile London, 2286', aluminium body with German si...
A Very Fine Box Sextant Stanley,
A Very Fine Box Sextant Stanley, English, c.1880, signed 'Stanley London' and Heavily engraved to the cover 'H W Harley Wolverhampton', the sextan...
A German Silver Protractor, Riefler, German, c.1890, the case signed 'C Riefler, Nesselwang, Munchen' in velvet lined brown leather case, case 19cm
A Rare Captain W. Postes' Mactometer, English, c.1860, signed 'J H Steward, 406 Strand London', and 'No.8 WP Trade Mark', the instrument delicalty...
W. Watson & Sons Ltd. 'Club' Portable Microscope Set, English, c.1910, signed to the rear of the stand 'W Watson & Sons, 313 High Holborn, 5513' o...
An 18th Century Acorn-Type Brass Microscope Compendium, English, c.1770, unsigned, constructed of brass with an internal loop/magnifying lens, a l...
A Swift Binocular "Challenge" Microscope, A Swift Binocular "Challenge" Microscope, English, c. 1880, signed to the rear of the foot ’J. Swift &...
An Unusual Victorian Microscope,
An Unusual Victorian Microscope, English, dated from the Lozenge date stamp 1872, engraved to the back of the stand 'THOs ARMSTRONG & BRO, 88 & 90...
A Smith Beck & Beck Universal Monocular Microcope, English, c.1870, the base embossed 'SMITH BECK & BECK LONDON, 3061, UNIVERSAL MICROSCOPE' stand...
Binocular Microscope Outfit, Smith & Beck, English, dated from the Beck Records as sold March 1859, engraved to the body tube Smith & Beck 6 Colem...
A Swift Student Petrological Microscope English, c.1900, signed to foot Swift & Son, London, supported on a black enamel foot with plano-concave m...
W. Watson & Sons Ltd. 'Club' Portable Microscope Outfit, English, c.1910, signed to the rear of the stand 'W Watson & Sons Ltd, 313 High Holborn, ...
A Compass-Type Simple Microscope, English, c.1820,in brass, with three lenses to achieve different magnifications, Adams-type three-claw specimen ...
A Very Fine Polarising Microscope Viewer, English,c.1840, unsigned, constructed of finely turned and polished Lignum Vitae, the central rotating s...
A Brass Compound Microscope, Dixey, English, c.1880, signed in script to the back of the circular base 'C. W. Dixey Optician to the Queen, New Bon...
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