An aerial view, taken in March 1945, of the Green Point end of the Sydney boom defences, looking across the harbour towards Georges Head. The boom gate is open to allow an approaching steamer and a Manly ferry to pass through. AWM 304574 Source AWM 304574 Place made Sydney, Australia Copyright Copyright expired - public domain See also Sydney and the Midget Submarines 1942: Australia Under Attack World War II 1939 to 1945