Columbia subject headings:
Decorative arts, Black--Cameroon.
Decorative arts, Black--Congo (Democratic Republic)
Decorative arts, Black--Sierra Leone.
Horn (Musical instrument)
Ivories--Cameroon.
Ivories--Congo (Democratic Republic)
Ivories--Sierra Leone.
Harvard subject headings:
Horn carving--Cameroon.
Horn carving--Congo (Democratic Republic)
Horn carving--Sierra Leone.
Ivory carving--Cameroon.
Ivory carving--Congo (Democratic Republic)
Ivory carving--Sierra Leone.
Princeton subject headings:
Decorative arts, Black--Cameroon.
Decorative arts, Black--Congo (Democratic Republic).
Decorative arts, Black--Sierra Leone.
Horn (Musical instrument)
Ivories--Cameroon.
Ivories--Congo (Democratic Republic).
Ivories--Sierra Leone.