Boomerang found in Sydney

This boomerang is a significant example of the use of materials by Indigenous Australians. It is unusual in that it was found sometime around the mid-twentieth century under about 10.5 metres of earth during the excavations to extend the sewage outlet, 30.5 metres east of Bunnerong Road, in Sydney's Eastern Suburbs. This suggests it may be of great antiquity and is perhaps one of the oldest surviving boomerangs found in New South Wales. A steel reinforcing collar has been attached to the centre of the boomerang.