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Froment's Electric Motor...
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3 Special Bulbs in Triple Mount, c. 1920...
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Spark Gap Induction Coil...
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Magneto-Electric Shock Generator, c. 1880...
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2 Interesting Electric Motors, c. 1910...
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High-Tension Transformer, c. 1910...
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Electromagnetic Motor, c. 1880...
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Early Door Alarm System with Glass Battery, c...
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Coincidence Rangefinder Wild TM2, 1966...
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Pocket Level Theodolite by Georg Butenschön, ...
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Group of Measuring and Surveying Instruments...
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English Table Telescope by Harris, c. 1850...
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2 Posters for Bausch & Lomb, c. 1936...
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Vixen 30 x 125 Binocular Telescope...
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3-inch Refracting Telescope by Bardou, mid 19...
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Trial Lens Set and Ophthalmologic Diagnostic ...
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Ophthalmological Trial Lens Set...
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The Botanic Microscope by William Withering, ...
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Brass Microscope by Reichert, Vienna, c. 1908...
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2 German Compound Microscopes...
