Old Woman v. Young Woman Metamorphic Illusion Trade Card

This is a cool Victorian trade card featuring the classic old woman/young woman metamorphic illusion. These types of illusion images were pretty popular in the era. "All is Vanity" was a popular image of a woman sitting at a vanity table and from a distance, the image looks like a skull. Another popular image featured a man and woman at a table and that also looks like a skull from a distance. I think today the most popular "illusion" image is the one in some novelty stores that shows what a woman looks like to a drunk man (i.e. pretty) versus what she looks like when he's sober (i.e. homely).