Portrait of Leonardo Da Vinci, one of the greatest of painters, sculptors, scientists and engineers. He left extraordinary drawings of significant physiological interest on muscle action, and on valve and hydraulic operations in the cardiovascular system.
Photograph of the front of a mortsafe in an Edinburgh cemetery, with writing visible but not legible on the front of the structure.
Publisher: Edinburgh: Greyfriars Churchyard.
Photograph of Dr. Arnold R. Rich operating with assistance of two others at Johns Hopkins Hospital. Signature: "Arnold R. Rich." The names of the other two men are written at the bottom of the photograph.