lucysskeleton:Leonardo Da Vinci, Anatomical studies1. The skeleton, pen and ink with wash, over whit
lucysskeleton:Leonardo Da Vinci, Anatomical studies1. The skeleton, pen and ink with wash, over white chalk, circa 1510-15112. The skull sectioned, pen and ink over black chalk, 14893. The cranium, pen and ink, 1489Source -- source link