Sold2 physical Demonstration Models, c. 19202 physical Demonstration Models, c. 1920 1) Spherical mirror, convex, on wooden stand, moveable, 12 ½ in. high. – And: 2) Rotating coil, 180° swingable, manufacturer: "Dr. Erich Huth, Berlin", 10See Sold Price
SoldGroup of Physical Demonstration Models, c. 1920Group of Physical Demonstration Models, c. 1920 1) Electromagnetic tuning fork. - 2) Sliding induction coil by Kagenaar, Utrecht. - 3) Cutaway model of an electric-driven sound generator. - 4) GalvanSee Sold Price
SoldLot of Physical Demonstration Models, c. 1920Lot of Physical Demonstration Models, c. 1920 1) Wimshurst's "Voltana" electrostatic machine, height 17 in, complete working condition! - 2) 3 Geissler's tubes (2 of them with spirit), 1 small x-ray tSee Sold Price
SoldLot of Physical Demonstration Models, c. 1920Lot of Physical Demonstration Models, c. 1920 1) Wimshurst's electrostatic machine, manufacturer "Fritz Saran, Halberstadt", discs Ø 10 1/5 in., without crank. - 2) Galvanometer, manufacturer "W.J. HSee Sold Price
SoldPhysical Demonstration Models, c. 1920Physical Demonstration Models, c. 1920 1) Small Wimshurst's induction machine, complete but for restoration. - 2) Communication tubes. - 3) Electroscope. - 4) Vertical galvanometer. - 5) Leyden jar.See Sold Price
Sold6 Induction Coils, c. 19206 Induction Coils, c. 1920 Physical demonstration models, 2 with moveable coils, sizes between: 6 1/4 x 3 1/6 and 12 1/4 x 6 3/4 in. 6 Induktionsspulen, um 1920 Physikalische Demonstrationsmodelle, 2xSee Sold Price
Sold2 Electric Motors, c. 19202 Electric Motors, c. 1920 Physical demonstration models. 1) Motor for direct, alternating and three-phase current, manufactured by "Physikalische Werkstätten, Göttingen", also useable as converter.See Sold Price
SoldGeissler Fluorescent Tube, c. 1920Geissler Fluorescent Tube, c. 1920 Physical-demonstration model, with 2 fluorescent liquids, on wooden stand, overall height 15 in., working. Geissler'sche Fluoreszenzröhre, um 1920 Physikalisches DeSee Sold Price
SoldPhysical-Demonstration Model Crookes' Tube, c. 1920Physical-Demonstration Model Crookes' Tube, c. 1920 With anode, cathode and platinum plate on wooden stand, overall height 15 2/5 in., working. Crookes'sche Glühröhre, um 1920 Physikalisches DemonstSee Sold Price
2 Electromagnets according to Weinhold, c. 19202 Electromagnets according to Weinhold, c. 1920 Physical demonstration models, 4 1/3 and 7 4/5 in. limb length, 2 and 4 ½ in. Ø, on wooden bases. 2 Elektromagneten nach Weinhold, um 1920 PhysikaliscSee Sold Price
SoldInduction Coil with Geissler Tube, c. 1920Induction Coil with Geissler Tube, c. 1920 Physical demonstration model, unmarked, size 7 1/2 x 4 x 5 1/2 in., works with 9 V battery. - Very good condition! Funkeninduktor mit Geißler'scher Röhre,See Sold Price
SoldShowcase "The Bulb Components", c. 1920Showcase "The Bulb Components", c. 1920 German physical demonstration model, manufactured by "Gebr. Höpfel, Lehrmittelanstalt, Berlin", size: 11 3/4 x 11 x 2 1/3 in. Schaukasten "Die Komponenten derSee Sold Price
Sold2 Physical Demonstration Models, c. 19002 Physical Demonstration Models, c. 1900 1) Pascal's apparatus, for showing that the pressure of liquids depends on their height, cast metal, brass, glass and tin, height 12 ½ in. – And: 2) SphereSee Sold Price
Sold2 Physical Demonstration Models, c. 19102 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 DemonstrSee Sold Price
Sold"Neon Lamps" Physical-Demonstration Model, c. 1920Neon Lamps Physical-Demonstration Model, c. 1920 French teaching model, with 8 individually-operated neon bulbs, on wooden base, 15 ¾ in. wide. Physikalisches Demonstrationsmodell "Glimmlampen", um 1See Sold Price
Sold2 Physical Demonstration Tubes, c. 19202 Physical Demonstration Tubes, c. 1920 1) Large Geissler tube, with 2 colored liquids, height with stand 15 in. - And: 2) Hittorf spiral vacuum tube, on turned wood stand, height 11 ¾ in., rare andSee Sold Price
Sold2 Electro-Physical Demonstration Models, c. 18902 Electro-Physical Demonstration Models, c. 1890 1) "Electrical Egg", with tap, brass lacquered, 20 in. high. – And: 2) Electro-medical shock machine, with large horseshoe magnet. 1) Elektrisches EiSee Sold Price
2 Induction Coils and Physical Demonstration Models, c.2 Induction Coils and Physical Demonstration Models, c. 1910 1) Coil on mahogany base, 9 7/8 x 4 ¾ in. - 2) Sliding induction coil, 11 x 3 ½ in. - 3) Conductor, on glass pillar, height 16 &See Sold Price
Sold2 Physical Demonstration Models with 9 Geissler Tubes,2 Physical Demonstration Models with 9 Geissler Tubes, c. 1910 1) Stand with turning star and 3 tubes with uranium spirals. – And: 2) Isolated stand with 6 tubes of different shape and color, 2 of tSee Sold Price
Sold2 Technical Automobile Demonstration Models by Welch,2 Technical Automobile Demonstration Models by Welch, c. 1920 W.M. Welch, Scientific Company, Chicago, USA. Cast iron and steel, on wood bases. 1) Steering, size 9 ½ x 7 in. - And: 2) Differential,See Sold Price
SoldLarge Hot-Air Motor with Transmission, c. 1920Large Hot-Air Motor with Transmission, c. 1920 Physical demonstration model, cast metal and nickeled brass, on wood base, working and reciprocating cylinders arranged side by side, overall size 15 x 7See Sold Price
SoldModel of a Micro-Telephone Station by Max Kohl, c. 1920Model of a Micro-Telephone Station by Max Kohl, c. 1920 Physical demonstration model. Open microphone on polished baseplate, fitted to two pillars and rotating about a horizontal axis. The board is fiSee Sold Price
Sold6 Physical Demonstration Models, c. 19106 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 DrosteSee Sold Price
Sold4 Interesting Physical Demonstration Models, c. 19004 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:See Sold Price
Rare Mallard Decoy by Clark Madara (1883-1953)Copley Fine Art Auctions4.5(40)See Sold PriceFeb 24, 2024
Black Duck Decoy by Clark Madera (1883-1953)Copley Fine Art Auctions4.5(40)See Sold PriceFeb 24, 2024
Preening Mallard Hen Decoy by Walter "Tube" Dawson (1882-1955)Copley Fine Art Auctions4.5(40)See Sold PriceFeb 24, 2024
Die Cast Model T Touring Cars & Texaco Signature ModelRapid Estate Liquidators and Auction Gallery4.5(1.1k)See Sold PriceMar 01, 2024
(7) VINTAGE KODAK 18, #3BULLS EYE, POSTCARD CAMERAAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(5) KODAK VEST POCKET CAMERA , ONE WITH COMPACTAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(5) EARLY BOX CAMERAS, CONLEY KEWPIE, HAWK-EYEAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(19) BOX CAMERAS, KODAK, ANSCO, BULLS EYE 1898Austin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
(8) VINTAGE CAMERAS, KODAK & ANSCO, ONE LIKE NEWAustin Auction Gallery4.7(1.2k)See Sold PriceApr 12, 2024
