Bookplate: A crowned serpent, curled around a caduceus, decorates the elaborate facade of a "gingerbread" house. Patients ring the respective bells of Dr. Oskar Lerperger, an ophthalmologist, and Dr. Anna Lerperger, a pediatrician.
Picture of a graduated cylinder and a syringe with a strip of plastic with beads on the edges wrapped around it. Stamped Ipse Fecit Fotomontage. By and for W. J. J. van Rossum.