Charles Wheatstone's prismatic pseudoscope. It switched the images presented to each eye to distort depth perception.

- Image ID: P81WNP
Charles Wheatstone's prismatic pseudoscope. It switched the images presented to each eye to distort depth perception. Stock Photo
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Charles Wheatstone's prismatic pseudoscope. It switched the images presented to each eye to distort depth perception.
FLHC 62 / Alamy Stock Photo
Image ID: P81WNP