SoldPhysical Demonstration Apparatuses, c. 1900Physical Demonstration Apparatuses, c. 1900 1) Magdeburg hemispheres, brass, with 2 handles. – 2) Windlass, machine model, brass worm and gear wheels, with handcrank. – 3) Pyrometer, for dSee 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
SoldGroup 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
Sold2 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
SoldAmpère 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
SoldElectromagnetic 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
SoldHigh-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
Sold4 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
SoldMicroscopic Polarisation Apparatus, c. 1900Microscopic Polarisation Apparatus, c. 1900 Unmarked, lacquered brass, cast metal horseshoe base, two illumination lenses and two polarisation units, height-adjustable upper tube, total height 15 See Sold Price
SoldBell Telephone Demonstration Model, c. 1900Bell 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 conditSee Sold Price
Sold2 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
Sold5 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
Sold4 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
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
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
Sold2 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
SoldElectrotherapeutical Devices and Physical Instruments, c. 1900-20Electrotherapeutical Devices and Physical Instruments, c. 1900-20 1) Wimshurst's electrostatic machine, cast-iron base, discs Ø 8 1/4 in., with crank. - 2) Leyden jar, height 10 in. - 3) InductionSee Sold Price
Sold3 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
SoldPhilip, George C1900 Physical Hemisphere MapShowing Ocean Currents, Vegetation. Lithograph Map Published C1900, London for "Philips' New Handy General Atlas of the World" by George Philip. Paper Size: 21 x 14.5 inch (53 x 37cm) Good ConditionSee Sold Price
SoldTwin-Cylinder Rack-Balancing Steam Engine with Boiler House, c. 1900Twin-Cylinder Rack-Balancing Steam Engine with Boiler House, c. 1900 Demonstration model of a pumping station, engraved on plaque: "Bateman & Sharratt, Rack Engine 60 H.P., Manchester Eng, 1794 to 182See Sold Price
SoldTellurium 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
SoldTellurium 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
SoldTellurium 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 with reflectorSee Sold Price
SoldElectro-Magnetic Motor with Rotating Geissler Tube, c. 1890Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 Physical demonstration model, two electro-magnets, on brass pillar, with wood and brass holder and original Geissler tube, for creating a daSee Sold Price
