The image is a detailed drawing or illustration of a nautilus shell. The shell is depicted in a spiral form, with distinct chambers separated by dark lines. The chambers are arranged in a logarithmic spiral, creating a visually appealing pattern. A purple, ribbon-like structure winds through the chambers of the shell, adding a contrasting element to the composition. The background is a light beige color, and the drawing appears to be on a textured paper or parchment. The overall style of the illustration is reminiscent of scientific or botanical drawings, with a focus on detail and accuracy.