Columbia subject headings:
Harvard subject headings:
Africa--Colonization--Germany.
Africans--Colonization--Germany.
Africans--Germany--Social conditions--19th century.
Africans--Germany--Social conditions--20th century.
Postcards--Africa--History--19th century.
Postcards--Africa--History--20th century.
Weiss, Peter (Postcard collector)--Art collections.
Princeton subject headings:
Africans in art--Pictorial works.
Black people in art--Pictorial works.
Germany--Colonies--Africa--History.
Postcards--Social aspects--Africa--History.
Postcards--Social aspects--Germany--History.
Stereotypes (Social psychology) in art.
Weiss, Peter (Postcard collector)--Art collections.