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2 Standard Meters...
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Wedgwood Pyrometer, mid of 19th Century...
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9 Measuring Instruments...
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Faraday's Motor with Mercury Cups, c. 1910...
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Rotating Field Demonstration Apparatus by Max...
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Large Islamic Astrolabe, 20th Century...
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Battery Charger by L. Rosengart, c. 1925...
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Electromagnetic Motor According to Froment, c...
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English AC Motor, c. 1930...
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Physical Demonstration Models...
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Induction Coil and 6 Demonstration Tubes, c. ...
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Ernst Plank Bipolar Electric Toy Motor, c. 19...
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Thomson Bridge for Measuring Small Resistance...
