Columbia subject headings:
Germany--Colonies--Africa--History--Pictorial works.
Namibia--Colonization--Pictorial works.
Namibia--History--1884-1915--Pictorial works.
Harvard subject headings:
Germany--Colonies--Africa--History--Pictorial works.
Namibia--Colonization--Pictorial works.
Namibia--History--1884-1915--Pictorial works.
Princeton subject headings: