An ancient mouth harp belonging to the Huns that dates back to around 1,700 years ago has been unearthed in Siberia - and it is still capable of making music. Also known as a jaw or 'Jew's harp', the reed is placed in the performer's mouth and plucked with the finger to produce the note. The instrument - 4 inches in length - was made by a craftsman from the ribs of a cow or horse and dates from the time the nomadic Huns controlled southern Siberia 1,580 to 1,740 years ago.