Marion B. Sulzberger was one of the most famous American dermatologists. He had received his training in dermatology in Zurich (Switzerland) from 1926 to 1929. The collection of moulages in Zurich still preserves outstanding wax models of Sulzberger's scientific work. They are impressive examples of the purpose and value of moulages at the beginning of the 20th century being used as teaching aids but also as documents and illustrations in scientific articles and textbooks. Today, the wax models of Sulzberger's work belong to the most important examples of moulages used in medical historical research. They also have value for teaching dermatology to medical students.