A vintage Leica camera used by one of the 20th century's most celebrated war photographers has sold for an incredible £1.2 million (almost $2million) at auction.

David Douglas Duncan used his trusty Leica M3D-2 to take a series of iconic photos while covering the Vietnam War for Life magazine.

A selection of pictures taken by the American at Khe Sanh in 1968 were also included along with the camera when it sold at auction in Austria.