This is an elongated Fang mask from Gabon, a type of African tribal art. These masks were historically used by members of the Ngil secret society during rituals. The white color is associated with the spirits of ancestors and male virility. The masks were often worn at night with torchlight illuminating the white face. They were used for various purposes, including the initiation of new members and the persecution of wrongdoers. The mask features a curved and tapered ovoid head with a long, thin nose and painted grid patterns in blue and red.