This hunting boomerang, or throwstick was made out of Mulga, a dense desert hardwood. I acquired it from a British collection that was sold at a major auction house in London in 1985. The collection tag said it was made in the late 19^th century or early 20^th century. The surfaces are smoothed and probably finished by scraping of the surfaces with stone tools after moisture was applied to the surfaces. The wood is very dark and the bend and tips have streaks of light colored wood. Most of the surfaces appears to be stone tool worked, but there are signs of metal tool use in a couple of places, so it is of hybrid construction. This hunting boomerang is in mint condition and without any cracks or damage. This hunting boomerang is half of a matched set of boomerangs used as a percussion musical instrument The other half of the set is item K20. No fine art on this one. This is a functional tool used by Aborigines who did not use modern weaponry.