Columbia subject headings:
Art patrons--Germany.
Artists and patrons--Germany.
Avant-garde (Aesthetics)--Germany.
Expressionism (Art)--Germany.
Harvard subject headings:
Art patronage--Germany--History--20th century.
Art patrons--Germany--History--20th century.
Artists and patrons--Germany--History--20th century.
Avant-garde (Aesthetics)--Germany--History--20th century.
Expressionism (Art)--Germany--History--20th century.
Princeton subject headings:
Art museums--Germany--History--20th century.
Art, German--20th century.
Art--Collectors and collecting--Germany--History--20th century.
Avant-garde (Aesthetics)--Germany.