Abelam cassowary bone dagger, Yina, Southern Abelam area, the Wosera, East Sepik Province, Papua New Guinea. Ex. Anthony Forge Collection (F. 94). Published: The Abelam: A People of Papua New Guinea, Diane Losche, 1982, p. 49. Early 20th century or before, 14-1/2” (36.8 cm) in height and sells for $3,000. Questions?