Young Girl-Old Woman Illusion - TO WOMEN

A famous perceptual illusion in which the brain switches between seeing a young girl and an old woman (or "wife" and "mother in law"). An anonymous German postcard from 1888 (left figure) depicts the image in its earliest known form, and a rendition on an advertisement for the Anchor Buggy Company from 1890 (center figure) provides another early example (IllusionWorks). For many