This TV grab photo taken on May 22, 2011, shows archaeological workers clearing the chinaware excavated from the wreckage of "Nan'ao-1", a merchant ship of the Ming Dynasty (1368-1644) which sank into the sea some hundred years ago near today's Nan'ao County of south China's Guangdong Province. Archaeological team members on Sunday conducted an under-water excavation of Nan'ao-1, during which they found and salvaged a large number of chinaware.