This type of stone tooled Aboriginal hunting boomerang, or non-returning throwstick, was used by most of the Aboriginal groups throughout Central Australia and was traded extensively. Hunters would normally carry at least 2 of these with them at all times. This example is of average size and it is well proportioned. The upper surface has longitudinal grooves running from tip to tip. The lower surface has shallow adze flaking. Red ochre covers the surface on both sides. These Central Desert throwsticks have the longest straight line flights of any Aboriginal throw stick. They were used for hunting, fighting, lighting fires by friction when rubbed on a shield, digging and for many ceremonial purposes. Used properly one of these could easily fell an emu from 40-60 metres. This one was probably made in the early to mid 20th Century. Length = 73 cm ; Weight = 380 gm