This mounted, four-inch gun was recovered from the German ship SMS Emden. The cylinder of the gun shows modest damage from Australian gunfire.
On the morning of 9 November 1914, the German Ship, SMS Emden, was shelled and destroyed by the Australian ship HMAS Sydney. The Emden, a protected cruiser of 3,540 tons, with the crew of around 361, was forced to run aground in North Keeling, an island isolated from the main Cocos-Keeling groups of islands.
A landing party, led by the Captain of the Emden, had successfully conducted an early morning raid on the Cocos Island to destroy a communication base. During the battle between the Emden and the Sydney, more than 200 German crewmembers were killed. Four Australians lost their lives and 16 were wounded.
In 1917, the Council of the City of Sydney accepted the gift of the Emden gun from the Commonwealth Government. It was mounted on a stone base with its protective iron railing, in the position in which it stands today.