The image is a vintage illustration of a platypus skeleton. The skeleton is depicted in a side view, showcasing the intricate bone structure of the animal. The platypus skeleton is detailed, with visible ribs, vertebrae, limbs, and skull. The illustration is done in a style reminiscent of old scientific drawings, with fine lines and shading. The background is a cream-colored page, giving the image a classic, antique feel. The overall impression is one of scientific accuracy combined with artistic detail.