[African] Ekoi Janus Headdress/Cap Mask. Nigerian, early 20th century. A double-faced African headdress, one face represents Father Heaven and the other Mother Earth, with four horns that would have been worn on top of a masquerading dancer?s head and held in place by a string underneath the chin. Made of antelope skin over carved wood and tied to basketry. Height 28?. Old repairs to horns, base of large horn insert partially missing; other is broken but still holding together with leather.