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Large Crookes Fluorescent Tube and Radiometer...
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Large Crookes Fluorescent Tube, c. 1910...
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2 Large Physical Demonstration Instruments, c...
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4 Large Physical Demonstration Instruments, c...
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4 Large Physical Demonstration Instruments, c...
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5 Physical Demonstration Instruments, c. 1920...
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5 Crookes Electronic Tubes, c. 1920...
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Very Large Bonetti-Type Influence Machine, c....
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5 Physical Demonstration Instruments, c. 1920...
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Italian Artillery Gun Range Finder, c. 1914...
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Döbereiner's Lamp, c. 1860...
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3 Compasses...
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Tellurium and Lunarium by Jan Felkl, Prague, ...
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Hughes Induction Balance, 1879...
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Electrostatic Experiment Devices, c. 1920...
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Induction Coils, Leyden Jars and Light Bulbs...
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Russian Brass Pocket Equinoctial Sundial, c. ...
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Electrical Telewriting Machine by Jules Richa...
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Nuremberg Sundial by Stockert, Late 18th Cent...
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Clandestine Receiver Mark 301, c. 1954...
