'The Battles of the Flanders Ridges, July 30-November 26, 1917', (c1920). '...map illustrating successive stages of the Allies' advance...inset, key map showing the Flanders Front and the seaward end of the Allies' lines on July 30, 1917'. The Third Battle of Ypres, also known as the Battle of Passchendaele, took place on the Belgian Western Front from July to November 1917. It was fought between the British, Belgian and French armies against the Germans, and resulted in the deaths of hundreds of thousands of men. From "The Great World War: A History", Volume VII, edited by Frank A Mumby. [The Gresham Publishing Company Ltd, London, c1920]