Labrets are believed to have spread to the eastern north Pacific sometime after 5500 years ago. Some of the earliest labrets in North America were found just south of Vancouver on Pender Island. They date to at least 5100 years ago. This labret was collected in western Alaska but it's also similar to labrets that have been found on the southern coast of British Columbia that date to between 5000 and 2000 years ago. This labret is made of coal. It measures 7/8 of an inch (2.3 cm) wide.