Garry Lawson acquired this large and heavily grooved bola stone as a gift from a friend from Argentina. It weighs about a pound, and is about two inches long. His friend said that he found it on Tierra del Fuego in the 1980s. Obviously it is a bola stone, and apparently from the Tehuelches. It is so heavy that it was probably used as a single stone. A photo of this artifact is shown below.