Sold20162 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
Sold20162 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
Sold20166 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
Sold20164 Physical Demonstration Models, c. 19104 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:See Sold Price
Sold20162 Dynamo-Electric Machines, c. 19102 Dynamo-Electric Machines, c. 1910 Physical demonstration models, 1 by Masquellier, Anvers, handcrank-driven, cast-iron wheels, on wooden boards, heights 12 ½ in. and 16 ½ in. 2 dynamoelektrische MSee Sold Price
Sold2016Ampère Table, c. 1910Ampère Table, c. 1910 Physical demonstration model, used for experiments on the relationship between magnetic fields and electric currents, originally with mercury filling, with 2 plaques: "InstrumenSee Sold Price
Sold2017Large Electro-Magnetic Motor with Rotating GeisslerLarge Electro-Magnetic Motor with Rotating Geissler Tube, c. 1910 Physical demonstration model, height 18 ¼ in., for tubes of up to 15 3/4 in. length, brass and steel, on walnut base, later tube, veSee Sold Price
Sold2016Electric Motor with 10 Geissler Tubes, c. 1910Electric Motor with 10 Geissler Tubes, c. 1910 Physical demonstration model with rotating Geissler tubes, on brass pillar and walnut base, height 7 ½ in., with 10 tubes of various shapes and colors.See Sold Price
Sold2023Group of Physical Demonstration Models, c. 1900Group 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 acidSee Sold Price
Sold20154 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
Sold20183 American Steam-Engine Demonstration Models, c. 19103 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, casSee Sold Price
Sold20173 Electro-Physical Demonstration Models, c. 19153 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 bSee Sold Price
Sold20164 Physical Demonstration Tubes, c. 19104 Physical Demonstration Tubes, c. 1910 1) Crookes tube, for demonstrating a magnetic altering the direction of radiant matter, length 13 1/3 in. – 2) Tubular magnet coil, height 10 1/5 in. – And:See Sold Price
Sold2017Group of Vacuum Tubes, c. 1915Group 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 uraniumSee Sold Price
Sold2020Tellurium and Lunarium by Jan Felkl, Prague, c. 1880Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 Physical demonstration model, signed on the earth globe: "Die Erde, Prag bei J. Felkl, No. 1", bronzed cast metal and lacquered brass, 2 1/3 in. plSee Sold Price
Sold20182 Physical Demonstration Instruments, c. 19002 Physical Demonstration Instruments, c. 1900 1) Aluminum plate electrometer by A. Pichler's Wwe, Vienna. Brass, height 10 ½ in. - And: 2) Ohmmeter by Chauvin & Arnoix, Paris. No. 696, in wood cSee Sold Price
Sold2017Electric Motor and 2 Armature Models, c. 1910Electric Motor and 2 Armature Models, c. 1910 1) DC motor, open construction, cast-metal housing, 3 belt drives, height 4 ¾ in. – And: 2) 2 Leybold armature models, 1 x double T armature and 1 x dSee Sold Price
Sold20202 Large Physical Demonstration Instruments, c. 18802 Large Physical Demonstration Instruments, c. 1880 1) "Electrical Egg", for the demonstration of an electrical discharge between two electrodes in a near vacuum, original lacquered brass, height 25 iSee Sold Price
Sold20174 Demonstration Model Electric Motors, c. 19104 Demonstration Model Electric Motors, c. 1910 Various models and constructions, height up to 7 in., untested. 4 Demonstrationsmodelle Elektromotoren, um 1910 Unterschiedliche Bauformen und KonstruSee Sold Price
Sold20152 Electrostatic Induction Demonstration Models, c. 19002 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 1900See Sold Price
Sold2022BECKER 2 pieces, drive model, c. 1910, carpenter at plane and saw, smith, 2 men at anvil, sheetBECKER 2 pieces, drive model, c. 1910, carpenter at plane and saw, smith, 2 men at anvil, sheet metal, handpainted, restored, height: 11 and 14.5 cm German Description BECKER 2 Teile, Antriebsmodell,See Sold Price
Sold2023Adix and Certa Adding MachinesAdix and Certa Adding Machines Pallweber & Bordt, Mannheim, Germany. 1) Adix model 2, c. 1910, attractive 3-digit adding machine with 9 keys, pre-clearing model, aluminum baseplate, in original velvetSee Sold Price
Sold20242 Adix Adding Machines2 Adix Adding Machines Pallweber & Bordt, Mannheim, Germany. 1) Adix model 2, c. 1910, attractive 3-digit adding machine with 9 keys and 10-addition bracket, pre-clearing model, aluminum baseplate, inSee Sold Price
Sold2022Pair of Ericsson Intercom Telephones, c. 1910Pair of Ericsson Intercom Telephones, c. 1910 2 model BC1300 units, serial nos. 1286995 and 1057805, for batteries, cradles with switches, single bells, handsets with speaking horns, on walnut boards.See Sold Price
5 days LeftFreeman's | HindmanF. Moreau for Teco Pottery (French/American, 1853-1920) Vase, model 127, c. 1910 Teco, USA$1,000(1 bid)
2 days LeftRich Penn AuctionsStereo Card Viewer, ash table model w/70 stereo views (35 sets of 2), c.1910, VG cond w/broken$125(2 bids)
2 days LeftRich Penn AuctionsCoca-Cola Magazine Ads (2), Star Performance & Youth, c.1910, VG & Exc cond, both framed, larger$50
6 days LeftKamelot AuctionsPAIR WROUGHT IRON GARDEN GATES WITH SCROLL FORM DESIGN C 1910.$175(4 bids)
6 days LeftKamelot AuctionsPAINTED AND LEADED GLASS WINDOW DEPICTING THE CORONATION OF THE BLESSED VIRGIN MARY C 1910.$50(1 bid)
6 days LeftKamelot AuctionsPAIR HEAVY CAST IRON PANELS DEPICTING THE SEAL OF THE CITY OF PITTSBURGH C 1910.$50
6 days LeftKamelot AuctionsROUND BRASS PLAQUE DEPICTING THE SEAL OF THE CITY OF PITTSBURGH C 1910.$50(1 bid)
6 days LeftKamelot AuctionsCARVED MAHOGANY DISPLAY CASE C 1910 HAVING SLIDING GLASS DOORS AND A BRASS LIGHT$50(1 bid)
6 days LeftKamelot AuctionsCARVED MAHOGANY DISPLAY CASE C 1910 HAVING SLIDING GLASS DOORS AND A BRASS LIGHT$50(1 bid)