The collection of the images of Ferdinand Schmutzer includes portraits of Albert Einstein, Sigmund Freud, Richard Strauss, Arthur Schnitzler, Karl Lueger, Pablo Casals, Fritz Kreisler, Felix Salten as well as the last two great potentates of Europe, Kaiser Karl I and Kaiser Wilhelm II. The portraits are primarily of personalities from the arts, science, politics and business who had a decisive effect on the cultural and social life of Austria until the end of the monarchy.