A rare World War Two German bomber, shot down over the English Channel in 1940 and hidden for years by shifting sands at the bottom of the sea, is so well preserved a British museum wants to raise it.

The Dornier 17 -- thought to be world's last known example -- was hit as it took part in the Battle of Britain.

It ditched in the sea just off the Kent coast, southeast England, in an area known as the Goodwin Sands....