Sold2022Collection of Physical Demonstration Models and Technical DevicesCollection of Physical Demonstration Models and Technical Devices 1) Carbon arc lamp, demonstration model by John Browning, London, original lacquered brass, 2 graphite electrodes, one height-adjustabSee 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
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
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
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 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
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
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
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
Sold2020Group of Scientific InstrumentsGroup of Scientific Instruments Physical demonstration models and others: 5 various Crookes cathode ray tubes, 1 x-ray tube (defective), 15 glass valves, 4 stands, 3 Leyden jars, 2 glass tubes with meSee 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
Sold2024Tellurium and Lunarium by Ernst Schotte, Berlin, c. 1890Tellurium 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 reflecSee 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
Sold2017Electro-Magnetic Motor with Rotating Geissler Tube, c.Electro-Magnetic Motor with Rotating Geissler Tube, c. 1915 Physical demonstration model, height 9Â 7/8 in., tube length 10Â 1/5 in., good condition, untested. Elektromagnetischer Motor mit rotierenSee 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
Sold2020Electro-Magnetic Motor with Rotating Geissler Tube, c.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 dazSee Sold Price
Sold2016Ampère Table, c. 1900Ampère Table, c. 1900 Physical demonstration model, used for experiments on the relationship between magnetic fields and electric currents, probably France, with pole changer, overall height 15 3/4 iSee Sold Price
Sold2016Electromagnetic Motor with Geissler Tube, c. 1900Electromagnetic Motor with Geissler Tube, c. 1900 Physical demonstration model, for tubes up to 6 in., overall height 8 in. Elektromagnetischer Motor mit Geißler'scher Röhre, um 1900 PhysikalischesSee 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
Sold2017High-Voltage Apparatus after Tesla, c. 1980High-Voltage Apparatus after Tesla, c. 1980 Large physical demonstration model, with spark gap, height 23 in. Hochspannungsapparat nach Tesla, um 1980 Großes physikalisches Demonstrationsmodell, mSee Sold Price
Sold2017Big Thunder Mountain Attraction Disney Lot 2Pat Burke personal collection of models, papers and artwork, sketches, technical drawings, vintage railroad reference book, rocks and ID badges from the period of his career in which he worked for DisSee Sold Price
Sold20205 Physical Demonstration Instruments, c. 19205 Physical Demonstration Instruments, c. 1920 1) "Mammoth" X-ray air-cooling tube with regeneration device, made by Cuthbert Andrews, England, length 20 in. - 2) Crookes cathode ray tube, for demonstrSee Sold Price
Sold2022Atq Authentic Human Skull Model - From CAL University Physical Anthropologist Professors CollectionAtq Authentic Human Skull Model - From CAL University Physical Anthropologist Professors Collection - Teaching Aid - CANNOT SHIP to Tennessee, Georgia or Louisiana -See Sold Price
May 22Freeman's | HindmanA Pair of Vladimir Kanevsky Porcelain and Painted Copper Models of Morning GloriesUS$3,500(3 bids)
May 16Eldred'sCASED SET OF WORLD WAR II-ERA U.S. NAVY RECOGNITION/TEACHING MODELS OF AMERICAN SHIPS 20th CenturyUS$500
1 day LeftRail & Road AuctionsChevrolet 35 mm Slide Photograph Collection - 1969 COPO Chevelle, 1968 Baldwin-Motion Camaro, 1972US$35(2 bids)
1 day LeftRail & Road AuctionsMassive Full-Size Mopar 35 mm Slide Collection - Plymouth Road Runner, Dodge Charger, Super Bee, GTXUS$60(2 bids)
1818 AuctioneersA large collection of modern Dolls House Furniture and Accessories, many pieces seen, mixed£30(1 bid)
1 day LeftRail & Road AuctionsFord 35 mm Slide Photograph Collection - '32 Roadster, '32 Hot Rod, '63 Falcon Pro Street, and MoreUS$20
Crawford Family Auctions LLCTrio of Case XX Folding Pocket Knives, models 3318 shsp, 6227, 61048 SS, bag of Case Knife emblemsUS$21(2 bids)
May 16Ma San AuctionA COLLECTION OF CHINESE EMBROIDERED SILK FRAGMENTS, PANELS AND A TASSELLED HANGING, LATE QING£70(2 bids)