Musk Ox mask from Nunivak Island. Center of mask is the black head of an ox with horns of bone. There are white and rust features on the ox and he holds a piece of wood in his mouth. Two wooden circles surround the head with eight feathers attached. Atop each of the feathers is a wooden fish or a wooden hoof. This mask's intended purpose was for decoration, but created in the style and tradition of Yup'ik mask making. Traditionally, Yup'ik masks were created by shamans, or angalkut, to be worn during dances to bring prosperity to the tribe.The animal represented by the masks were intended to bring a surplus of that particular animal.