5667152 Helmet Mask, Bamum kingdom ( Wood, copper, glass beads, raffia, cowrie shells) by African, (19th century); Metropolitan Museum of Art, New York, USA; (add.info.: From Cameroon, Grassfields region, before 1880 Masks with beads, cowrie shells, or brass sheathing are the prerogative of the Fon and function under the authority of the palace and "Kwifoyn", a regulatory society. Payment of membership brings privileges of mask forms in celebrations performed to honour its members.).