Electrostatic Demonstration Models, c. 1915

3 Electro-Physical Demonstration Models, c. 1915 1) Stand with 2 copper spirals separated by a glass cylinder, with an incandescent lamp, height 13 in. - 2) Kolbe's electrometer, aluminum, standard b

Tesla Coil Demonstration Model, c. 1915 With label: "Elektro Vulkan, Kromeriz", circular wood base, inner coil on porcelain isolator, outer coil on 3 glass columns, height 15 ¾ in., Ø 10 1/5 in.,

2 Electrostatic Induction Demonstration Models, c. 1900 Glass balls with hanging gold strips, conductors on the top, height 7 ½ and 9 7/8 in. 2 Demonstrationsmodelle "Influenz-Elektrizität", um 1900

Group of Vacuum Tubes, c. 1915 Physical demonstration models. 1) Geissler tube lighting up by friction, length 19 1/3 in. – And: 2) 10 various Geissler tubes, 2 of them liquid-filled, some uranium

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1915 Physical demonstration model, height 9 7/8 in., tube length 10 1/5 in., good condition, untested. Elektromagnetischer Motor mit rotieren

Group of Physical Demonstration Models, c. 1900 1) Wimshurst's influence machine, Trüb, Fierz & Cie., Zurich, height 14 ½ in., complete, rubber straps need to be renewed. - 2) 8 chromic acid

4 Interesting Physical Demonstration Models, c. 1900 1) Ebert's phosphorescent lamp with 2 electrodes. – 2) Crookes' apparatus for experiments on radiant matter. – 3) Crookes' radiometer. – And:

4 Physical Demonstration Models, c. 1910 1) Reflection and refraction apparatus by "Max Kohl, Chemnitz". – 2) Filament lamp on wooden stand. – 3) Voltmeter by "Radiguet à Paris", brass. – And:

3 American Steam-Engine Demonstration Models, c. 1910 1) Cast-iron model of a railroad locomotive engine, reversible, with Stephenson steering, hand-cranked, width 18 ¼ in. - 2) Steam motor, cas

2 Physical Demonstration Models, c. 1910 1) Crookes' radiant matter tube, height 16 ½ in. – And: 2) Winkelmann-type vacuum double bulb, 1 glass tip broken, height 15 ¾ in. 2 physikalische Demonstr

6 Physical Demonstration Models, c. 1910 1) 2 Leyden jars, height 15 and 20 ½ in. – 2) Discharger, with 2 ebonite handles and hinge. – And: 3) 3 conductors on glass pillars, one by Robert Droste

Bell Telephone Demonstration Model, c. 1900 Manufacturer: E. Leybold's Nachfolger, Coeln-Rhein. Open-works telephone model for demonstrating the mechanism, on mahogany base, very good original condit

Electrophysical Demonstration Model, c. 1890 France, marked "HRFA", mahogany, thick-walled glass container (fixed to the base), 6 electric connections, 2 coils, 2 electrodes inside of the glass, one s

Continental Typewriter Demonstration Model, c. 1935 Official model of Wanderer-Werke, Siegmar-Schönau, no. P072545, for demonstrating all functions of a typewriter, carriage movement defective, o

4 Demonstration Model Electric Motors, c. 1910 Various models and constructions, height up to 7 in., untested. 4 Demonstrationsmodelle Elektromotoren, um 1910 Unterschiedliche Bauformen und Konstru

Alternating Current Motor by J. Kalb & Co., c. 1915 Model W8, 220 V, 1,9 A, 1/6 horsepower, 1300 rpm. Suitable for automatic pianos and orchestrions. Wechselstrom-Motor von J. Kalb & Co., um 1915 M

Demonstration Telephone by Leybold, c. 1915 Marked: "E. Leybold's Nachfolger, Köln" (E. Ley bold's Successor, Cologne). With carbon granule microphone, resistance, switch and box earphone. Demonstr

Demonstration Model AEG Hand Drill, c. 1950 Model UHB10, transparent plastic body, bakelite, in oak case, pressure switch on the front (defective), 23 3/5 x 13 ¾ in. Demonstrationsmodell AEG-Ha

Johnson Fare Box, No 24, Model D, Trolley Car Cranker Box, C. 1915 - A model D Johnson Farebox, patented in 1914. With copper-tone plate on faretake side, hand painted "FARE 7c or 3 for 20", also tag

9"x6", the staple bound manual in good condition with light wear.

4 Telephones 1) Ericsson table phone, model 381, original handset, demonstration model without tin cover, c. 1902. - 2) French candlestick telephone by A. Burgunder, with second earphone by Unis Fran

Otto Prutscher, bentwood flower stand, c. 1915, Austria, model no. 9661, lacquered carved and bentwood, the round top with fluted skirt, raised on four outward sweeping arms ending in scrolls, on shap

American sterling silver oval service tray, Whiting Manufacturing Co., c.1915, model no 6012, approx 12"l, 9.5"w, 15.96ozt Start Price: $250.00

Manufacturer: E. Ingraham Model: Nile Features & Details: -C.1915 Measurements: 46"L x 10"W x 4.5"D Condition: Clock is in beautiful restored condition with minimal surface wear as expected with age.