No. SUBSAH-017
Mofu
Mandara Mountains · Gudur, Far North Cameroon · Central Africa
Function not recorded
Among the Mofu of the Gudur massifs — the "men of the rocks," whose chiefs still guard the hidden cult of the mountain spirit high in Cameroon's Mandara range — a flat blade was whirled on a cord: the rhombe. What its voice was for is lost.
Source
Guernier (ed.), Encyclopedie coloniale: Cameroun, Togo (1951)