Columbia subject headings:
Blaue Reiter (Group of artists)--Exhibitions.
Brücke (Artists' group)--Exhibitions.
Expressionism (Art)--Germany--Exhibitions.
Postcards--Germany--Exhibitions.
Harvard subject headings:
Art, German--Exhibitions.
Art, Modern--20th century--Germany--Exhibitions.
Blaue Reiter (Group of artists)--Exhibitions.
Brücke (Artists' group)--Exhibitions.
Expressionism (Art)--Germany--Exhibitions
Postcards--Germany--Exhibitions.
Princeton subject headings:
Art, German--20th century--Exhibitions.
Art, German--Exhibitions.
Blaue Reiter (Group of artists)--Exhibitions.
Brücke (Artists' group)--Exhibitions.
Expresionism (Art)--Germany--Exhibitions.
Postcards--Germany--Exhibitions.