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Early Electric Motor with Sliding Resistor, c...
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"Menlo Park Reminiscences", 1937...
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Large Electromagnetic Motor with Geissler Tub...
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Electro-Magnetic Motor with Rotating Geissler...
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Sundial, 1854...
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Nuremberg Sundial by Stockert, Late 18th Cent...
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English Pocket Compass Sundial, c. 1840...
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Augsburg Equinoctial Sundial, c. 1790...
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Augsburg-Type Equinoctial Compass Sundial by ...
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Russian Brass Pocket Equinoctial Sundial, c. ...
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Horizontal Sundial with Noon Cannon, 19th Cen...
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Heliochronometer by "Pilkington & Gibbs Ltd.,...
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Hughes Induction Balance, 1879...
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Electrotherapeutical Devices, Physical Instru...
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Planetarium Clock by William Perkins, 1925...
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2 Standard Meters by Otto Fennel, c. 1900...
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German Coin Balance by Herbertz, 1769...
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German Terrestrial Globe, c. 1935...
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Islamic Astrolabe, probably late 19th Century...
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4 Mechanical Typewriters...
