Fine Photographica & Instruments of Science & Medicine

A Large & Complex Astronomical Perpetual Calendar, 18th century, Danish, brass with traces of gilding, signed 'Math. Jochimson', obverse engraved ...

A Silver-Gilt Perpetual Calendar, 18th century, German, obverse volvelle with days of the week with symbols against days of the month, reverse wit...

A Fine Compensated Aneroid Barometer by R& J Beck, c.1900, English, ebonised brass body with silvered dial and exceptionally fine needle, calibrat...

A Compensated Pocket Barometer Altimeter by Ross, London, c.1870, English, nickel-plated brass body, silvered dial divided to 1/20" of mercury, ro...

A Silver Cased Deck Watch by W Matthews, signed 'W Matthews Holyhead Road Coventry 42858', with broad arrow, mounted on brass outer case within ma...

A Silver Cased Deck Watch by H Williamson, signed 'H Williamson Ltd 81 Farringdon road London EC no. 2372', white enamel dial with outer second di...

A Nickel Plate Cased Deck Watch by H Williamson, signed 'H Williamson Ltd London, 18098F', same number engraved on side of case and etched on bac...

A 15ct Gold Watch Chain, maker C.W, each link stamped '15, .625', weight 45.0 grams, length 32cm

An 18ct Gold Hunter Watch by Lutz Brothers, late 19th Century, full hunter, signed 'Lutz Brothers, Locle', case and movement numbered 90708, case...

A Silver Cased Chronograph, early 20th Century, Swiss, white enamel dial with subsiduary seconds and 60 minute totaliser, chronograph to 1/5 secon...

An Eight Day Deck Watch by Waltham Watch Company, early 20th century, American, serial no. 18073468, 15 jewels, silvered dial with bold Arabic num...

French Double Refraction Apparatus, c.1900, French, signed 'M.on. Jules Duboscq Ph Pellin Paris', with screw mechanism for rotating disc engraved ...

A Small Wimshurst Electrostatic Machine by Bing, c.1900, German, unsigned, enamelled cast iron base, glass leyden jars, 8" contra rotating ebonite...

A Fine Ramsden Pattern Electrostatic Plate Machine, c.1880, English, trade label to door 'Willm Ladd Beak Street, Regents Street, London', French ...

A Wooden Magnetic Demonstration Globe, c.1910, English, with ivorine plaque for 'Philip Harris, Birmingham', the 6" mahogany laminated globe with ...

A Late 18th Century Bench Magnifier, c.1800, English(?), unsigned, constructed of waxed Mahogany, with 3.5" glass lens in square frame, height 31....

A Large De La Rieve Tube, c.1870, English, signed to air tap and wooden base 'Harvey & Peak, London', heavy gauge hand-blown glass with all lacque...

A Large Electric Egg, c.1880, English, signed to air tap 'Harvey & Peak, London', heavy gauge hand-blown glass with all lacquered brass fittings, ...

A Cathode Ray Tube, c.1900, unsigned, German, low vacuum Crookes tube, hand-blown glass bulb with three anodes, tested and working, height 31cm

A Coin Balance, c.1800, English, folding pocket guinea scales in mahogany and brass, with turns and slide to weigh 7 shilling gold piece, guinea, ...

A Coin Balance, 18th century, German, cut steel equal arm coin scales with quadrant indicator for light weight, in shaped fruitwood case with past...

A Steelyard Coin Balance by Benjamin Martin, c.1780, English, Benjamin Martin's 'New Portable Steelyard for Gold Coin', signed 'Martin Fecit No. 4...

Two Late 18th Century Engravings of 'Chymical Characters', copperplate engravings mounted in modern glazed frames, 45cm x 33cm

Arago's Disc Physics Demonstration Apparatus, by Harvey & Peak, in mahogany with copper disc, glass plate and steel needle, with label 'Harvey & P...

A Silver Cased Thermometer by Moritz Pillischer, c.1880, English, in pocket-watch style with engraved decoration, dial with fine blued steel needl...

A Georgian Collection of Shells, c.1800, English, solid mahogany cabinet opens to reveal five lift-out trays of shells in individual compartments,...

A Victorian Perspective of The Thames Tunnel built by Brunel , in four sections, front cover opening to reveal a blue front piece with eye holes c...

A Magic Stereoscope , stereo viewer ,  c.1860, English, unsigned, covered in tooled leather, hinged top to front and rear, both with mirrors and b...

A European Zograscope, c.1800, Italian(?), unsigned, constructed of waxed walnut, turned base supporting column with screw clamp, mirror to rear w...

A Zograscope, c.1800, English, unsigned constructed of French polished mahogany with ebony & boxwood stringing, turned base supporting column with...

A Rare Quartz Crystal Camera Obscura(?) Lens, c.1850, French, signed 'Lentille en Quartz Foyer 15cm Ed Lutz Paris', brass lacquered ring with reta...

A Brass Camera Lucida, c.1880, French, signed 'BOUCART Constr, Quai de l'horloge 35 Paris', constructed in lacquered brass with single drawer stan...

A Magic Lantern Kaleidoscope & Slide, c.1900, English, body engraved 'C & F Darker, Patentee's London' brass body incorporating two angled mirrors...

A Lithophane Night Light Lamp, c.1900, German, stamp to base 'Von Schierholz' on three scroll feet with three pictorial panels and three floral de...

A Lithophane Lamp Shade, c.1900, German, unsigned, with four pictorial panels on later replacement brass stand, stand height 46cm

A Lithophone Tankard, c.1900, German, unsigned, with a lithophane panel to base, with pewter hinge and frame to porcelain lid with blue hand-paint...

A Lithophe Night Light Panel Holder, c.1900, German, unsigned, profusely decorated cast metal with candle holder to rear, to fit panels, 15cm x 17...

A Lithophane in Stained Glass Frame, c.1900, German, showing a landscape with bridge impressed 'RUDESHEIN', 15cmx19cm

A Lithophane, c.1900, German, showing Christ on the cross, 9.8cm x 12cm

A Lithophane, c.1900, German, circular lithophane showing a winged angel, diameter 13.5cm

Lithophane in Stained Glass Frame, c.1900, German, showing landcape with church and hilltop castle, impressed 'OBERWESEL', 15cm x 19cm

A Lithophane, c. 1900, German, tapered sea-faring scene, 14cm x 9cm x 13cm

A Lithophane, c.1900, German, winged cherub in flight, 14cm x 9cm x 13cm

A Lithophane, c.1900, German, showing boy in countryside, 6.5cm x 7.5cm

A Lithophane, German, c.1900, showing two girls fishing, 15cm x 16.5cm

Two Polychrome Lithophane, c.1900, German, members of the public admiring a sculpture, 14.5cm x 18cm

A Polychrome Lithophane, c.1900, German, shooting party departing, 14.5cm x 18cm

A Lithophane in Lead Frame, c.1900, German, country girl on lute with her admirer, 14.5cm x 19cm

A Lithophane, c.1900, German, sailboat at sunset, impressed 'AC/1o8', 10.5cm x 15.5cm

A Lithophane, c.1900, German, Christ with crown of thorns, 15.5cm x 19.5cm 

A Lithophane, c.1900, German, tapered river valley, impressed 'LURLEY', 14cm x 9cm x 13.5cm

A Lithophane in Red Stained Glass Frame, c.1900, German, girl knitting while kitten plays with wool, 17cm x 19cm 

A Lithophane in Stained Glass Frame, c.1900, German, two children being disciplined for paddling, 17cm x 19cm 

A Lithophane in Stained Glass Frame, c.1900, German, two girls in schoolroom, 13cm x 15cm 

A Lithophane in Stained Glass Frame, c.1900, German, country girl by dry stone wall, scanning the distance, 17cm x 19cm 

A Lithophane in Stained Glass Frame, c.1900, German, small child playing idly in kitchen, 17cm x 19cm

A Lithophane, c.1900, German, lady with child at breast, 16cm x 20cm 

Eight Astronomical Lantern Slides, including mechanical orrery slide, unsigned, seven mechanical slides by Watkins & Hill - Annual and Diurnal Mot...

A David Brewster Kaleidoscope by Robert Banks, c.1830, English, lacquered brass body on folding brass stand, with three cells, crown and Prince of...

A Collection of Stanhope Viewers , c.1900, three examples with different wood finishes, one stamped 'Franco British Exhibition of 1908', with thre...