The sinking of the German cruiser 'Mainz', 28 August 1914, (c1920). 'An instantaneous photograph taken on board one of the British Warships during the Naval Engagement off Heligoland'. British sailors watch the sinking of a German ship during the First Battle of Heligoland Bight. This was the first naval battle of the First World War, fought between ships of the United Kingdom and Germany. From "The Great World War - A History" Volume I, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920]