At first glance, Martin Schlaff’s collection focus appeared irritating: Antisemitica. The intention behind this is easy to explain: the collector wanted to take the objects off the market and, so to speak, remove them from their originally intended use—to foment and further inflame antisemitism. Donated in 1993, these items became museum objects and are used for scientific research. Today, the presented objects often form the starting point for discussions about the question of how and why antisemitism can also be found in the 21st century.