Lots of ancient coffins have images of Nut inside them, either on the bottom or the lid. It's a form of magic—Nut's there so she can give the mummies a comforting hug, and help them on their way to the afterlife. [Wooden coffin fragment showing Nut (bottom inside of the coffin), ca. 1200-1000 BCE (Late Period). Currently in the Smithsonian Institution.] Public domain.