The copper artefact, one of several finds (pictured) on the Wessel Islands in Australia, is believed to be a Kilwa coin from what is now Tanzania and could date back almost 1,000 years.
The copper artefact, one of several finds (pictured) on the Wessel Islands in Australia, is believed to be a Kilwa coin from what is now Tanzania and could date back almost 1,000 years.
