The works-of-art facet collects all metadata relating to the image carrier/object. In addition to the subject of the image, artist, location, preserving institution and date, this includes information on the physical characteristics: material, technique, dimensions and object type. Furthermore, information is collected on whether the object belongs to a larger ensemble. You can refine your search using these criteria via the works-of-art facet. You can also use the tree structure of these fields in the thesaurus facet to browse through the content.