A worker checks in a special room where the Parma hams are hung to dry in Langhirano near Parma. Prosciutto di Parma can only be produced in a very restricted area of 29 sq km (11.2 sq mile) around the town of Parma in the region of Emilia Romagna, just north of Tuscany. Around 10 million hams are sold every year, of which about 2 million are exported, mainly to France, the United States and Germany, which each consume about 400,000 a year. (REUTERS, file photo from 2009)