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"Klöne & Müller" Berlin Compound Microscope...
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Berlin Brass Microscope by ...
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Brass Compound Microscope by Hartnack, c. 188...
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2 German Compound Brass Microscopes, c. 1875...
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Rare Berlin Compound Microscope by Gundlach, ...
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Compound Brass Monocular Microscope, c. 1840...
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Berlin Polarisation Microscope by Fuess, c. 1...
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5 Physical Demonstration Tubes...
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Quadrant Electrometer based on William Thomso...
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French Experiment Box for Demonstrating Elect...
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2 Cathode Ray Tubes...
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Large Geißler Tube, c. 1900...
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Ramsden-Type Electrostatic Generator, c. 1860...
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2 German Mirror Galvanometers, c. 1910...
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Leclanché Battery Cell, c. 1900...
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Astatic Reflecting Galvanometer by Elliott Br...
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Sullivan's Universal Marine Galvanometer, c. ...
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Coherer Demonstration Model, c. 1910...
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Reference Books on Science, Technology, Inven...
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Wimshurst's Electrostatic Machine, c. 1920...
