The Rebis (Rosarium Philosophorum)

This black-and-white woodcut depicts a central, hermaphroditic figure wearing a crown and robe, possessing two heads—one male and one female—and a pair of leathery, bat-like wings. The figure stands on a coiled, three-headed serpent. In the figure's right hand, it holds a chalice from which three serpents emerge; in its left, it holds a single snake. To the left stands a tall, slender tree featuring multiple sun-like faces among its leaves, while to the right, a winged griffin or bird-like creature sits in a nest near a lion partially obscured behind the central figure.

This image is a seminal emblem from the 'Rosarium philosophorum' (1550), a foundational alchemical text illustrating the 'chemical wedding' or the union of opposites (Sol and Luna) to produce the hermaphroditic Rebis. It represents the successful culmination of the Magnum Opus.