Science & Technology, Mechanical Music, Fine Toys & Automata

Nuremberg Sundial by Stockert, Late 18th CenturyStockert a Bavaria. Paper on wood, string gnomon, inset compass, rear side with list of latitudes ...

Electrical Telewriting Machine by Jules Richard, Paris, c. 1890Early French device, for recording meteorological data such as pressure, vacuum or ...

Russian Brass Pocket Equinoctial Sundial, c. 1880Inset dial compass under glass, hour ring with Roman numerals, silvered scales, folding gnomon, Ø...

Induction Coils, Leyden Jars and Light Bulbs1) Miniature induction coil, coil length only 2 ¼ in., with spark gap, on mahogany base, 3 ¼ x 2 ¼ in....

Electrostatic Experiment Devices, c. 19201) 3 dischargers with ebonite handles, one with hinge. - 2) 7 conductors on glass pillars, two of them ac...

Hughes Induction Balance, 1879Laboratory instrument, made by W. Groves, London. With inscription on brass plaque "Given to Heath Grammar School fr...

Tellurium and Lunarium by Jan Felkl, Prague, c. 1880Physical demonstration model, signed on the earth globe: "Die Erde, Prag bei J. Felkl, No. 1",...

3 Compasses1) Paperweight, glass, Ø 3 1/6 in., weight 350 g, c. 1920-30. - 2) Lighter, nickeled, c. 1935. - And: 3) Sundial with compass, painted ...

Döbereiner's Lamp, c. 1860Lighter invented by Johann Wolfgang Döbereiner, cylindrical porcelain jar with lid, brand mark SPM and Prussian eagle, f...

Italian Artillery Gun Range Finder, c. 1914Marked "Ottica Mecc. G. Passerini, Milano" and "R. Esercito". With 4¾-inch telescope, magnetic compass ...

5 Physical Demonstration Instruments, c. 19201) High-voltage transformer according to Elster and Geitel, made by Max Kohl, Chemnitz, Germany. On w...

Very Large Bonetti-Type Influence Machine, c. 1910Electrostatic generator, manufactured by Roycourt, successeur de L. Bonetti, Paris. Polished wal...

5 Crookes Electronic Tubes, c. 19201) Maltese cross tube with forward-tipping cross, length 6 ¼ in., on stand. - 2) Cathode ray deflection tube, u...

5 Physical Demonstration Instruments, c. 19201) Crookes tube, with aluminum anode in butterfly form, coated with a fluorescent material, with glas...

4 Large Physical Demonstration Instruments, c. 19201) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down...

4 Large Physical Demonstration Instruments, c. 19201) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down...

2 Large Physical Demonstration Instruments, c. 18801) "Electrical Egg", for the demonstration of an electrical discharge between two electrodes in...

Large Crookes Fluorescent Tube, c. 1910Gas discharge tube with cathode, anode and a bouquet of fluorescent flowers. Overall height: 18 in.! - Extr...

Large Crookes Fluorescent Tube and Radiometer, c. 1910Gas discharge tube with cathode, anode and a fluorescent windmill with turning sails. Overal...

Large Geissler Tube with Uranium Glass Flower, c. 1915Cold cathode gas discharge tube, lower part filled with colored fluid, on turned wooden base...

4 Large Physical Demonstration Instruments, c. 19201) "Maltese Cross", cathode ray tube with aluminum cross inside the tube, designed to flip down...

Tellurium and Lunarium by Jan Felkl, Prague, c. 1880Physical demonstration model, signed on the earth globe: "Zemekoule Vydalo J. Felkl a syn Rozt...

Japanese Mariner's Compass, c. 1850Magnetic compass, hardwood case, Ø 4 ¾ in., upper face with characters of the 12-sign cycle, with lid.Zustand: ...

Complete Apparatus for Experiments with High Currents according to Tesla, c. 1910With maker's plaques "Franz Steflitschek - Mechaniker - Wien VI. ...

Physical Demonstration Models, c. 19001) Henley discharger, lacquered brass, 2 glass columns, mahogany base, with inscription "Ecole de Pharmacie ...

Very Large Wimshurst's Electrostatic Machine, c. 1920Manufacturer: H. Heustreu, Werkstätten, Precisions mechaniken & Optik, Kiel. A pair of contra...

Electrotechnical Laboratory Devices and Accessories1) Power-supply unit for voltages up to 260 volts DC. - 2) Grundig/Hartmann & Braun, converted ...

Very Large Holtz-Type Influence Machine, c. 1880Electrostatic generator, manufactured by E. Ducretet, Paris. Polished walnut frame, glass columns,...

Group of Scientific InstrumentsPhysical demonstration models and others: 5 various Crookes cathode ray tubes, 1 x-ray tube (defective), 15 glass v...

Electric-Powered Mercury Interrupter, c. 1920Manufactured by Watson, London. For operation of high-potential coils, with 2 or 4 interruptions per ...

5 Physical Demonstration Instruments, c. 19201) "Mammoth" X-ray air-cooling tube with regeneration device, made by Cuthbert Andrews, England, leng...

6 Physical Demonstration Instruments, c. 19201) Vacuum tube with cylindrical cathode, height 11 2/5 in. - 2) Canal ray tube according to Goldstein...

Ducretet Mercury Interrupter, c. 1900E. Ducretet, Paris. With metal container for mercury, electric motor, height-adjustable contact and pole chan...

4 Physical Demonstration Instruments1) Tesla generator, 6 in. primary coil, 2 in. secondary coil, with spark gap, pillar 33 ½ in. high. - 2) Wimsh...

5 Physical Demonstration Instruments, c. 1920 onwards1) Geissler tube, with multicolored spiral and uran glass cup, length 12 ½ in. - 2) Crookes c...

5 Physical Demonstration Instruments, c. 19201) Canal ray tube after Goldstein, made by by Rudolf Pressler, Cursdorf, Germany. Height 13 in. - 2) ...

Van de Graaff Generator and Wimshurst's Electrostatic Machine, c. 19501) Van de Graaff generator, generator for creating very high voltage direct ...