Electrophysical Demonstration Model, c. 1890

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

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

Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890 Physical demonstration model, 1:163 million scale, bronzed cast metal and brass, with hand-turned mechanism, the sun as a candle without reflec

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 Physical demonstration model, two electro-magnets, on wood pillar, with wood and brass holder and original Geissler tube, for creating a daz

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.,

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

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

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

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:

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

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

A Painted Metal Two Piston Water Pump Demonstration Model C.E. Penrod, 1973 Property from a Midwest Collector

UNIDENTIFIED TLINGIT (YAKUTAT) ARTIST Model Canoe, c. 1890-1910 carved alder and pigment, 4 x 18.25 x 4.5 in (10.2 x 46.4 x 11.4 cm) unsigned. Provenance Private Collection, USA; A Vancouver Collectio

Emile Peynot (1850-1932), attr. ARTIST'S MODEL STUDIES, c.1890. A pair of albumen prints mounted to thick period card, image sizes 115 x 80mm and 110 x 75, card slightly larger, the latter inscribed '

UNIDENTIFIED ARTIST, HAIDA, PROBABLY MASSET, HAIDA GWAII Model Totem Pole,c. 1890 argillite, 13.5 x 3.25 x 2.75 in (34.3 x 8.3 x 7 cm) unsigned. Provenance Private Collection, Montreal.

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

ATTR: PAUL JONES (c. 1847-1927), TANU / SKIDEGATE, HAIDA GWAII Model Totem Pole,c. 1890-1900 argillite, 9 x 2 x 2 in (22.9 x 5.1 x 5.1 cm) unsigned. Provenance Chrsitie's, 18 March 1984, their

POSSIBLY PAUL JONES (c. 1847-1927), SKIDEGATE, HAIDA GWAII Model Totem Pole, c. 1890-1910 argillite, 9.5 x 2 x 2 in (24.1 x 5.1 x 5.1 cm) unsigned. Provenance Private Collection, British Columbia; Fir

UNIDENTIFIED ARTIST, TLINGIT, SITKA, ALASKA Model Canoe and Paddles, c. 1890 -1910 alder wood and pigment, canoe: 4 x 17.5 x 4 in (10.2 x 44.5 x 10.2 cm), / paddles, each, approx.: 0.5 x 7.5 x 1 in (1

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

Early Wall Telephone by L.M. Ericsson, c. 1890 Stockholm, model 301, fixed carbon microphone, Bell-type handset, 3-part crankinductor, double bell, lightning protection, ornate walnut case, writing de