A Leitz black-enamelled Compound Binocular Microscope, serial no. 309110, with eyepieces (5...

Lacquered brass and black-enamelled Compound Monocular Microscopes, W Watson & Son, with folding...

Modern Microscope Objectives, Nikon (8), Leitz (2) and GS (2), G (12...

A 19th Century brass Three-Draw Naval Telescope, re-covered, incomplete, P, af...

Slide Rules and Drawing Instruments, Stanley boxwood engineer's slide rule 'Ganga Ram's Patent Scale...

A late 19th Casella Century lacquered brass Protractor, with adjustable divided indicator arm and...

A Curta Calculator Type I, serial no. 35628, black, in cylindrical metal case and original cardboard...

Various Instruments, transfer-printed white ceramic Maw Graduated Medicine Spoon, circa 1875 (1...

Various Instruments, mid 19th Century brass circular protractor, signed J Gargory, 41 Bull St...

A 19th Century J H Dallmeyer lacquered brass Transit Instrument, with 2in telescope, with lens cap...

A Pair of early 20th Century French Refractor Field Glasses, black-painted brass, with brown...

A mid-19th Century lacquered brass S Maw & Son Compound Monocular Microscope, with one objective and...

A Watson black-enamelled Bactil Binocular Microscope, serial no. 116353, with quadruple nosepiece...

An early 20th Century Swift & Son Student's Microscope, with draw-tube focusing, simple stage, wheel...

Crookes Tubes, 420mm long, G, and X-Ray 280mm long, P, anticathode loose (2...

Various Instruments, Ross Ltd Thermograph, Negretti & Zambra Hydrograph and Griffin & George...

A mid-20th Century mahogany Six-Drawer Dental Instruments, containing Ash stainless steel...

A 19th Century Set of Spherical Glass Spirit Proofing Bubbles, each etched with appropriate numbers...

An early 19th Century German Hydrometer Set, four hydrometers with mercury bulbs of varying sizes...

A Griffin & George Chemical Balance, in glazed mahogany cabinet, 420mm wide, F-G...

Siege of Paris Pigeon Post, Balloon Post and Microphotography, Ballon Monté' (manned baloon) post...

Trade Catalogues, Trade Catalogues, Gallenkamp General, 17th Ed., Oct 1970, 856pp; Standley, Belcher...

Trade Catalogues, Reichert, Wien, List E7, 1876-1926, 138pp; Ernst Leitz, 1907, Cat No 42...

Engineering Literature, C Lindley & Co Ltd illustrated tool catalogue - 21st Edition, Small Tools...

British Scientific Instrument Maker's Catalogues, James Swift & Son Ltd, 25th edition, 1913, and...

An early 19th Century brass Wm Ashmore Day to Night three-draw Naval Telescope, with mahogany body...

A late 19th Century boxwood Pocket Sun-Dial and Compass, retailed by A W Gamage Ltd, Holborn, with...

A 19th Century boxwood 'Patent Pantochronometer' Pocket Sun-Dial, with gnomon on 'floating...

An Negretti & Zambra ivorine Pocket Forecaster Dial, with instructions, in original box, 52mm diam...

A late 19th Century Callaghan & Co Silver Aneroid Barometer Compendium, aneroid and compass, both...

Adrien Barrere French 1877-1931 colour lithograph 'La Faculte et Dr Doyen', cariacature of French...

Microscope Slides, including paper-covered, Boiteux 1930s specimens, circular and rectangular insect...

A mid-19th Century pair of Parnall & Co brass Retail Scales, the tapering beam with oval box ends...

A 20th Century pair of chrome-plated Co-Op 2lb Shop Scales, stamped Co-Operative Wholesale Society...

A late 19th Century Troughton & Simms anodised brass 13in Dumpy Level, stamped Co-Operative...

Modern Surveying Instruments, Hilger & Watts theodolite, in cylindrical metal case with broad arrow...

Various Instruments, optical square, hydrometer, in case, lacks thermometer, Mayer and Meltzer...

A Negretti & Zambra lacquered brass Air Meter, with silvered dial and test report, af, subsidiary...

Negretti & Zambra Modern Aneroids, Air Ministry Altimeter, circular dial, 130mm diam., with inset...

Late 19th Century Circular Pocket Aneroids, Stanley, London, serial no. 2093, 75mm diam., and Short...

A Midwife's Outfit, suede and composition new-born baby, facsimile pelvis, skull, leaflet and books...

A Loftus Sikes's Hydrometer, cased, Cooke Troughton & Simms Gunsight Clinometer and Negretti...

A mid-19th Century lacquered brass Magic Lantern Projection Microscope, with two lenses, right angle...

An early 19th Century part-set of Richard Bate 'Borough of Harwich' brass 1824 Standard Spherical...

A mid-19th Century set of De Grave 'County of Essex' brass 1844 Standard Measures, engraved 'De...

A mid-19th Century set of De Grave 'County of Essex' brass 1844 Standard Measures, engraved 'De...

An early19th Century part-set of Robert Bate 'Borough of Harwich' brass 1824 Standard Measures...

A mid-19th Century De Grave 'County of Essex' wooden Standard Measure Carrying Case, brass plate to...

A mid-19th Century De Grave 'County of Essex' wooden Standard Measure Carrying Case, brass plate to...

A mid-19th Century De Grave 'County of Essex' wooden Standard Measure Carrying Case, brass plate to...

A mid-19th Century De Grave 'County of Essex' wooden Standard Measure Carrying Case, brass plate to...

A mid-19th Century De Grave 'County of Essex Borough of Saffron Walden' wooden Standard Measure...

Microscope Accessories, large quantity of microscope eyepieces, some in pairs, mostly 1930s to 1950s...

Microscope Accessories, large quantity of microscope objectives, some in cans, some cans empty...

Microscope Accessories, double and triple nosepieces, mostly 1930s to 1950s (24...

Microscope Accessories, Watson - micrometer and prismatic eyepieces, both cased, Leitz Ehrlich and...

Microscope Accessories, Lomo Biolam microscope, in case, and various accessories; with empty...

Microscopes and Accessories, microscopes - drawtube tripod, pocket, and others, opthalmoscope and...

Modern Maxwell Scott Microphotographs, including Queen Elizabeth II, Professor Quekett, Watson...

Modern A J Didonato Microphotographs, including Dancer facsimiles and many others (apx. 400...

Compound Monocular Microscopes, lacquered brass R & J Beck, with circular stage and Y-shaped foot...

A Zeiss black-enamelled and nickel Paul Meyer Dissecting Microscope, serial no. 29212, with folding...

A late 19th Century Royal Society of Arts lacquered brass Compound Monocular Microscope, with...

A rare late 19th Century J Swift & Son lacquered and anodised Compound Monocular 'Dick' Petrological...

A late 19th Century Collins lacquered and anodised brass Student's Compound Moncular Microscope...

A 19th Century Smith Beck & Beck lacquered brass Compound Wenham's Binocular Universal Microscope...

Microscope Accessories, mahogany and brass slide preparation turntable, slides and cover discs and...

Microscope Accessories, Leitz 1/100mm Micrometer, in fitted leather case, Möller 2mm micrometer...

Microscope Accessories, Zeiss centring slides, in leather cases (2), Watson Stage Micrometer Divided...

A mid-19th Century Smith & Beck lacquered and anodised brass Second Class The Best Student's or No...

Stanhope Microscopes and Peepers, microscopes, varying sizes (3), with peepers in crucifixes (3...

French Camera Lucida, lacquered brass, in fitted case, 205mm wide (1) and larger variant with two...

Microscopes, early 19th Century mahogany and brass pocket field dissecting microscope, 140mm wide...

Microscope Accessories, Reichert metallurgical objectives (8), for inverted metallurgical...

Microscope Accessories, Leitz camera lucida, in fitted leather case, Zeiss Abbe camera lucida, in...

A 19th Century James Hicks lacquered brass Portable Stove and Flask, with two theromometers, in...

Microscope Lenses and Accessories, lacquered brass, including late 18th and early 19th Century...

20th Century lacquered brass Microscope Objectives, in cans, contents not necessarily correct, and...

A 20th Century lacquered brass and black-enamelled Watson High Power Binocular Eyepiece, serial no...

19th and early 20th Century lacquered brass Microscope Objectives, in cans, contents not necessarily...