Bonhams auction house facing claims it is selling looted Roman antiquities

Third-century Roman plate and bust of Emperor Hadrian alleged to have links to man convicted of illegal dealing

The auction house Bonhams is facing calls to withdraw a Roman antiquity from its forthcoming London auction amid claims that it was looted from Turkey.

A third-century Roman silver plate, decorated with a depiction of a river god, is lot 62 of the 5 December auction and is estimated to sell for between 20,000 and 30,000.