Columbia subject headings:
Harvard subject headings:
Collectors and collecting--Germany--History.
Goethe-Museum Düsseldorf, Anton-und-Katharina-Kippenberg-Stiftung--Exhibitions.
Princeton subject headings:
Collectors and collecting--Germany--History.
Goethe-Museum Düsseldorf, Anton-und-Katharina-Kippenberg-Stiftung--Exhibitions.