This hunting boomerang, or throwstick was made out of a dense hardwood. I acquired this boomerang in 1990 from the Barclay Gallery in Mt. Clemens, Michigan The shape is very similar to the hunting boomerangs made in the Central Desert region. This shape allows for much longer flight range than those hunting boomerangs made in forested regions. The construction method matches that of hunting boomerangs made in South Australia. It does not have the longitudinal grooving ( fluting ) found on most boomerangs made in the Central Desert. Both surfaces were shaped by scraping the surface after moisture was applied to softhen the outer layers. It was probably made in the 19th Century, based on color and construction method. It is in very nice condition with only minor marks on the surface and edges as expected. A very nice artifact that appears to be a rare hybrid between South Australia and Central Desert technologies.