Here's a retro dinosaur ruler! The dinosaur illustrations show both the dinosaur's living form and its skeleton depending on the viewing angle!! There is some soiling and scratches due to aging. Please check the images. There is also some warping! ◯ Styracosaurus ◯ Gorgosaurus ◯ Brontosaurus ◯ Stegosaurus ◯ Allosaurus If you are interested, please consider purchasing.