Printed easter eggs: fore-edge paintings hidden in books
by Andrea James from on (#1VR8W)
https://www.youtube.com/watch?v=OZZQ28YZXSE
High-end printers began decorating the edges of books as the craft developed, including dyeing and gilding the edges, but in the 17th century, artisans began creating fore-edge paintings that could only be seen when books were fanned. Below is another example: (more")