Scientific & Medical Objects

2 Physical Demonstration Models with 9 Geissler Tubes, First Image

#image-loader-main { display: none; }

2 Physical Demonstration Models with 9 Geissler Tubes, First Image

2 Physical Demonstration Models with 9 Geissler Tubes,

Total Sales1 Sold

Median Sale Price

Sale Price Range

Similar Upcoming Sales

ASSORTED CANDELABRA AND EPERGNE COMPONENTS, UNCOUNTED LOT (1 of 1)

ASSORTED CANDELABRA AND EPERGNE COMPONENTS, UNCOUNTED LOT

Jeffrey S. Evans & Associates

2 days Left

ASSORTED PATTERNED KEROSENE STAND LAMPS, LOT OF TWO (1 of 1)

ASSORTED PATTERNED KEROSENE STAND LAMPS, LOT OF TWO

Jeffrey S. Evans & Associates

2 days Left

ASSORTED PRESSED PATTERN KEROSENE STAND LAMPS, LOT OF TWO (1 of 1)

ASSORTED PRESSED PATTERN KEROSENE STAND LAMPS, LOT OF TWO

Jeffrey S. Evans & Associates

2 days Left

ALADDIN MODEL B-124 / CORINTHIAN KEROSENE STAND LAMPS, LOT OF TWO (1 of 1)

ALADDIN MODEL B-124 / CORINTHIAN KEROSENE STAND LAMPS, LOT OF TWO

Jeffrey S. Evans & Associates

2 days Left

NORTHWOOD'S NO. 333 / LEAF MOLD SPATTER MINIATURE LAMPS, LOT OF TWO (1 of 1)

NORTHWOOD'S NO. 333 / LEAF MOLD SPATTER MINIATURE LAMPS, LOT OF TWO

Jeffrey S. Evans & Associates

2 days Left

A composed lot of six various mechanism clocks for reconstruction or parts (1 of 9)

A composed lot of six various mechanism clocks for reconstruction or parts

Ostantix Auctions

Feb 24, 2026

ALADDIN MODEL B-104 AND B-125 / CORINTHIAN KEROSENE STAND LAMPS, LOT OF TWO (1 of 1)

ALADDIN MODEL B-104 AND B-125 / CORINTHIAN KEROSENE STAND LAMPS, LOT OF TWO

Jeffrey S. Evans & Associates

2 days Left

ALADDIN MODEL NOS. G36-14, G44-14, AND G66-14 ELECTRIC TABLE LAMPS, LOT OF THREE (1 of 1)

ALADDIN MODEL NOS. G36-14, G44-14, AND G66-14 ELECTRIC TABLE LAMPS, LOT OF THREE

Jeffrey S. Evans & Associates

2 days Left

Early electric carbon filament bulb lot (1 of 6)

Early electric carbon filament bulb lot

Anne And Anna’s Estate Services

5 days Left

Kundo #825 Electronic Table & Seth Thomas Clock 2p (1 of 11)

Kundo #825 Electronic Table & Seth Thomas Clock 2p

MiddleManBrokers Inc.

Feb 05, 2026

French Copernican heliocentric Armillary Sphere Delamarche (1 of 9)

French Copernican heliocentric Armillary Sphere Delamarche

Chairish Auctions

Cast Bronze, Art Deco Lamps with Solid Glass Rods (1 of 20)

Cast Bronze, Art Deco Lamps with Solid Glass Rods

Chairish Auctions

4 days Left

Rock Crystal Lamps Deco /Modern Design a Pair (1 of 20)

Rock Crystal Lamps Deco /Modern Design a Pair

Chairish Auctions

4 days Left

PAIR OF COUNTRY STORE MECHANICAL DEVICES (1 of 5)

PAIR OF COUNTRY STORE MECHANICAL DEVICES

Dan Morphy Auctions

Feb 19, 2026

Pair of Brass Toned Metal Candlestick Lamps (1 of 6)

Pair of Brass Toned Metal Candlestick Lamps

Feb 06, 2026

Electrified Brass and Milk Glass Oil Lamps with Marble Bases (1 of 9)

Electrified Brass and Milk Glass Oil Lamps with Marble Bases

Legacy Auction House

4 days Left

Similar Sale History

Unlock All Prices

Sold

2 Physical Demonstration Models with 9 Geissler Tubes, (1 of 3)

2 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 t

Sold

Electro-Magnetic Motor with Rotating Geissler Tube, c. (1 of 1)

Electro-Magnetic Motor with Rotating Geissler Tube, c.Electro-Magnetic Motor with Rotating Geissler Tube, c. 1915 Physical demonstration model, height 9 7/8 in., tube length 10 1/5 in., good condition, untested. Elektromagnetischer Motor mit rotieren

Sold

Group of Vacuum Tubes, c. 1915 (1 of 1)

Group of Vacuum Tubes, c. 1915 Group 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 uranium

Sold

Electric Motor with 10 Geissler Tubes, c. 1910 (1 of 3)

Electric Motor with 10 Geissler Tubes, c. 1910 Electric 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.

Sold

Large Electro-Magnetic Motor with Rotating Geissler (1 of 1)

Large Electro-Magnetic Motor with Rotating Geissler Large 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, ve

Sold

Electromagnetic Motor with Geissler Tube, c. 1900 (1 of 1)

Electromagnetic Motor with Geissler Tube, c. 1900 Electromagnetic 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 Physikalisches

Sold

2 Physical Demonstration Models, c. 1910 (1 of 1)

2 Physical Demonstration Models, c. 1910 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

Sold

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 (1 of 1)

Electro-Magnetic Motor with Rotating Geissler Tube, c. 1890 Electro-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 da

Sold

Electro-Magnetic Motor with Rotating Geissler Tube, c. (1 of 1)

Electro-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 daz

Sold

Group of Scientific Instruments (1 of 7)

Group of Scientific Instruments Group 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 me

Sold

2 Dynamo-Electric Machines, c. 1910 (1 of 1)

2 Dynamo-Electric Machines, c. 1910 2 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 M

Sold

2 EICO Model 625 Tube Testers- 9 3/4" tall x 12 1/2" (1 of 4)

2 EICO Model 625 Tube Testers- 9 3/4" tall x 12 1/2"2 EICO Model 625 Tube Testers- 9 3/4" tall x 12 1/2" wide x 5" deep

Sold

6 Physical Demonstration Models, c. 1910 (1 of 1)

6 Physical Demonstration Models, c. 1910 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

Sold

Group of Physical Demonstration Models, c. 1900 (1 of 5)

Group of Physical Demonstration Models, c. 1900 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

Sold

Collection of Physical Demonstration Models and Technical Devices (1 of 6)

Collection of Physical Demonstration Models and Technical Devices Collection 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-adjustab

Sold

4 Interesting Physical Demonstration Models, c. 1900 (1 of 3)

4 Interesting Physical Demonstration Models, c. 1900 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:

Sold

4 Physical Demonstration Tubes, c. 1910 (1 of 1)

4 Physical Demonstration Tubes, c. 1910 4 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:

Sold

4 Physical Demonstration Models, c. 1910 (1 of 1)

4 Physical Demonstration Models, c. 1910 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:

Sold

3 Electro-Physical Demonstration Models, c. 1915 (1 of 1)

3 Electro-Physical Demonstration Models, c. 1915 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

Sold

Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 (1 of 1)

Tellurium and Lunarium by Jan Felkl, Prague, c. 1880 Tellurium 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. pl

Sold

Early Radio Receiver, c. 1925 (1 of 1)

Early Radio Receiver, c. 1925 Early Radio Receiver, c. 1925 Demonstration model, ebonite plate, 2 tubes (RE134, A408), Audio Frequency Transformer Type R-12, plug-in coil, swivel coil, variable capacitor, 2 potentiometers, size 3

Sold

Ampère Table, c. 1910 (1 of 1)

Ampère Table, c. 1910 Ampère 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: "Instrumen

Sold

2 Electrostatic Induction Demonstration Models, c. 1900 (1 of 1)

2 Electrostatic Induction Demonstration Models, c. 1900 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

Sold

Zenith Comsol-Tone Tube Radio (1 of 4)

Zenith Comsol-Tone Tube Radio Case measures 14" x 9". Model number 2-93.

TOP