Folder: Optical Page 2 of 2

eye_stronger_edit

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New Instrument Makes Eye Muscles Stronger, Popular Science, Sep, 1939

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Mirror on Table Beside Typewriter Serves as End-of-Page Indicator, Popular Science, Apr, 1946

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Aerial reconnaissance Photograph examined by RAF expert. (England, 1941 [?]).

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Movie Slot Machine Shows Pictures of Latest News Events Illustration taken from Modern Mechanix, Nov. 1932 MOTION-PICTURE newsreels are on view for a nickel in a modern version of the…

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Low-cost viewer lets you see who’s calling, Popular Science, Jul, 1964 This phone-viewing system gives you a picture of any caller similarly equipped. It can be used on ordinary telephone…

glasses_crop

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Eye-Glasses Double for Microscope, Modern Mechanix, Jul, 1936. EYE-GLASSES which can be used instead of a microscope have been invented by C. Dreisseg of Hamburg, Germany. The glasses…

3dspecs_crop

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Making Third Dimension Spectacles, Modern Mechanix, Mar. 1935 See your own photographs in true perspective with these inexpensive, easily-made “third dimension” spectacles — ”enjoy “living scenes” where every…

TOO_25_A

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W.H. Steavenson photographed with the Yerkes 40 inch telescope, 1928.