Columbia subject headings:
Germany--History--1918-1933.
Germany--Social conditions--1918-1933.
Political posters, German.
Harvard subject headings:
Princeton subject headings:
Facsimiles.
Germany--History--1918-1933--Sources.
Germany--Social conditions--1918-1933--Sources.
Kollwitz, Käthe, 1867-1945.
Plivier, Theodor, 1892-1955--Political and social views.
Political posters, German--Facsimiles.