Columbia subject headings:
Art--Collectors and collecting--Germany--Potsdam--Exhibitions.
Art--Germany--Potsdam--Exhibitions.
Art--Private collections--Germany--Potsdam--Exhibitions.
Potsdamer Kunstverein--History--Exhibitions.
Harvard subject headings:
Art--Collectors and collecting--Germany--Potsdam--Exhibitions.
Art--Germany--Potsdam--Exhibitions.
Art--Private collections--Germany--Potsdam--Exhibitions.
Princeton subject headings: