Bookplate: Seated Eastern male in ethnic dress in a medallion around which is motto: Labeur est mon desduyt. Below two tapeworms form a holder enclosing a mosquito on a pin.
Portrait of a book with two shields. On one shield is a skull, and on the other shield is a caduceus. A patriarchal cross is in the center. Drawn by H. S.
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.
A tree serves as a caduceus with a serpent wound around the trunk. The branches are hands, one holding a flower, another a globe. At the top is an eye.