Vintage Skeletons Diagram with Numbered Bones Mug

Vintage darkly humorous black and white image of a skeleton couple, one facing front, the other facing back, seemingly holding hands and looking into each other's eyes, as though they are about to begin a dance. Each anatomically correct skeleton is diagrammed with numbered bones, at one time possibly used in a science laboratory of old, or a classroom receiving a lesson in the human skeletal system. Here are several romantic skeleton couples, posing all around a coffee mug. Great Halloween gifting material.