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X-Ray Tube by Leybold, c. 1929...
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Sliding Induction Coil based on Design by Du ...
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Large Mercury Arc Rectifier, c. 1930...
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Early German Step Counter, c. 1780...
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French Galvanometer by Carpentier, c. 1880...
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2 Physical Demonstration Instruments, c. 1900...
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Group of 5 Electron Tubes...
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Gundelach X-Ray Tube, c. 1915...
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Wimshurst's Electrostatic Machine, c. 1955...
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Small Wimshurst's Electrostatic Machine, c. 1...
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Motor Mercury Interrupter, c. 1900...
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2 Induction Coils and Physical Demonstration ...
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Physics Catalogs 1910-1955, Annuals and Jubil...
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Physical Demonstration Models, c. 1910...
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2 European Taxidermy Displays, c. 1920...
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6 Physical Teaching Displays...
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Swiss Precision Construction Kit "The Automat...
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Special Apparatus "Ondographe Hospitalier", 1...
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Motor Mercury Interrupter by Max Kohl, c. 190...
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French Precision Instrument, 1928...
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3 Measuring Instruments...
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Large Current-Generating Dynamo, c. 1910...
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Electrophysical Demonstration Model, c. 1890...
