African art Mbuya mask, PendeR.D..Congo. . Cm 14,00 x 42,00. Brown patina, small wooden mask with raffia applications. Mbuya masks (which can be of the giwoyo, muyombo or ginjinga type), are used during the initiation rites and funerals and their specific type is defined by the ensemble of the costume and its accessories. These masks are of some interest as they seem to be one of the oldest aesthetic models among those known.