This distinctive string bag with cassowary feathers comes from the Telefomin region, Mountain Ok people of Papua New Guinea’s West Sepik Province (now called Sandaun Province—meaning “sun down” as it is in the far west of the country). These bags were the prerogative of only senior men as cassowary, especially larger ones, are very dangerous and difficult to hunt. Coming face to face in the dense forest with an adult cassowary at over two meters in height is an almost assuredly a near death experience. There is a very similar billum published in New Guinea Art: Masterpieces from the Jolika Collection of Marcia and John Friede, 2005, no. 360. The present bag dates to the mid 20th century, is 33” (83.9 cm) in height as mounted and sells for $950. Questions?