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Quadrant in wood case, brass
Telescope and scale
pH meter, Model G
Balance, chainomatic in case with weights
Ion chamber used by Millikan
Delta Wing test model
Compass with sighting element, brass
Magnetic relay for electronic switching
Microscope in wood box
Voltmeter
Compass with pocket string sundial
Telescope from George Ellery Hale
Weights set
Transformer
Ion chamber used by Millikan and Bowen
Slide rule in leather case
Altimeter in leather case
Cathode ray tube, German
Microscope, handmade English
Microammeter, Volta Meylan d'Arsonval

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