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2 Physical Demonstration Instruments, c. 1900 First Image

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2 Physical Demonstration Instruments, c. 1900 First Image

2 Physical Demonstration Instruments, c. 1900

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5 Physical Demonstration Instruments, c. 1920 (1 of 4)

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

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

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Electrotherapeutical Devices, Physical Instruments and (1 of 1)

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

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Ampère Table, c. 1900 (1 of 1)

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Physical Demonstration Instrument “De la Rive’s Electric Egg”, c. 1880 (1 of 1)

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

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4 Surveying Instruments, c. 1900 (1 of 1)

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4 Physical Demonstration Instruments (1 of 3)

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3 Animal Measuring Instruments, c. 1900 (1 of 1)

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

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

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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:

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

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

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2 Office Machines, c. 1900 (1 of 1)

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