This hunting boomerang, or throwstick, was made out of a dense hardwood. The color is very dark with age and I assumed that the wood was Mulga because of a small blonde streak near one edge, but the grain is different. It looks very much like a quilted grain pattern similar to Silky Oak which grows in Queensland. I acquired this boomerang in 1991 from a gallery in Perth, Western Australia. The gallery was selling artifacts from the famous W. H. Holt/Lord Alastair McAlpine collection. This boomerang has the McAlpine collection number 1575 printed over a small dash of white out or paint near one end. The shape and construction method matches that of hunting boomerangs made in South Australia. It is large and symmetrical and both surfaces are shaped by scraping. It was probably made in the 19th Century, based on color , construction method and source. It is in excellent condition. A very nice artifact with a wonderful provenance.