One summer during the 1980s, strange crop marks appeared in two fields on the north Cornish coast near Lellizzick. Locals have picked up a wealth of 1,500-year-old pottery and metalwork from as far away as North Africa and Turkey. Combined with some spectacular geophysics, it all suggested that this was once a busy international trading site.[4] In Mick's opinion copper and tin would have been exchanged for foreign luxury goods. But Time Team are having trouble dating the site. They are joined by Steve Hartgroves from Cornwall County Council, Finds specialist Carl Thorpe, and Byzantine expert Anthea Harris.