Vintage African Punu tribal mask from Gabon circa 1960. This mask measures 12.5 inches high by 8 inches wide by 7 inches deep. The Punu people reside on the left bank of the Upper Ngoume River in Gabon. They belong to the group of tribes known as Shira, which were originally part of the Luango kingdom of Angola. Along with the Eshira, the Lumbo, the Vili, the Galoa, and the Vungu people, the Punu migrated northwards during the 18th century and settled in the area they continue to inhabit to this day. They live in independent villages divided into clans and families, and social cohesion is ensured by a society known as moukouji. Its primary role is to regulate community life with regards to social and judicial matters, and mainly it applies itself to the neutralization of evil forces. To this end, officiates of moukouji utilize a cult kit that includes statuettes, human relics and masks. Punu masks represent idealized female ancestors' faces. The white color of the mask is genderless; white is a symbol for peace, deities, spirits of the dead, and the afterlife. Therefore the masks were worn during funeral celebrations, memorials, and in the magical rites whose function was to unmask sorcerers. The masks have realistic, mostly white but sometimes black faces with protruding pursed lips, globular protruding eyes incised with a curve, high-domed foreheads, and characteristic rigid high coiffures reflecting the Punu women's hair styles. Many Punu masks can be recognized by raised diamond-shape scarification marks on the foreheads and temples, thought to be associated either with a female ancestor or with a southern sub-group of the Punu tribe. Black face-masks have exactly the same stylistic characteristics as the white masks, but they are believed to have a judiciary function and help identify sorcerers. The performances of the masks are nowadays intended primarily to entertain audiences on festive occasions. Only rarely do the masqueraders fulfill a ritual function of officiating at funerals, when they dance as embodiments of the ancestor spirits. In performances the dancers, wearing costumes of raffia or cotton fabric and animal pelts, move with amazing acrobatic agility on stilts up to six and a half feet in height.