The focus of this catalog is the collection of stone works which largely goes back to the princely origin of the museums collection. It covers a wide spectrum of different genres, ranging from free-standing sculptures and reliefs to works of applied art. The first part combines essays on interdisciplinary issues concerning this part of the collection with a scientific catalog. The history and catalog raisonné of the museum's 1888/89 plaster cast collection are the second focus of this volume. The collection of plaster casts was extended into the 20th century and supplemented by elaborate color versions and reconstructions of antique sculptures. This now-lost part of the collection offers an unusually telling example of the appreciation of plaster in the 19th and 20th centuries.