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Two Scales, 19th Century...
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Twelve Measuring and Laboratory Instruments, ...
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Measuring and Laboratory Equipment, c. 1910 o...
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Twenty Measuring and Laboratory Instruments, ...
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Measuring and Laboratory Equipment, c. 1910 o...
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Persian Astrolabe, c. 17th Century...
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Fourteen Geometrical Teaching Models, c. 1957...
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French Timer, 1913...
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Two Electrophysical Devices, 1880 onwards...
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Two Descriptive Geometry Teaching Models, c. ...
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Electrostatic Machine with "Electric Chair" a...
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Hemisphaerium Coeli Boreale, c. 1730...
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Miniature Bone Terrestrial Globe, c. 1800...
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Kretzschmar Kinematograph, c. 1902...
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Terrestrial Telescope on Tripod, c. 1850...
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French Bone and Brass Monocular with Grip, c....
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Rare German Brass Microscope, c. 1830...
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Miniature Telescope, Traveling Tools und Fold...
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Three Laboratory Instruments...
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Magic Lantern by C. Eckenrath, c. 1880...
