The tubular eyelids give an exorbitant look to this African mask of the Metoko, Mituku, generally worn on the occasion of funerals. The numerous scarifications, inscribed in alternating parallel lines, reveal the status of the character embodied by the mask, a worthy old man who has been the victim of witchcraft, kakungu. In the hollow of these furrows, kaolin pigments have become encrusted, conferring a light brown patina on the object. Furrows of desiccation run through the object.
Their society, the Butoka, welcoming both men and women, is the equivalent of the Bwami association of the Lega. The sculptures, often geometric and decorated with colored spots, played a role in the context of initiation ceremonies, and were then placed on the tomb of high-ranking initiates. Each of these figures had a name, following the example of lega traditions, referring to behaviors symbolized by characters. The two upper grades, nkumi and kasimbi, enjoyed the prerogative of holding certain objects of worship. (ref.: Art ande Life in Africa, C.D.Roy)