The Mysterious Diamond Eye Imp: An Optical Illusions from Early American Advertising
From Duke University’s Emergence of Advertising in America archive comes this beautiful advertisement for Diamond Dyes, published sometime between 1853 and 1920. The ad uses the negative afterimage optical illusion, which is a common sight in most first year psychology textbooks, although usually in a much more boring way. This image is actually kind of frightening.
,The Mysterious Diamond Eye Imp
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