presents the code of a photograph taken by James Francis (Frank) Hurley on the 29 October 1917. The picture shows five Australians, members of a field artillery brigade, passing along a duckboard track over mud and water among gaunt bare tree trunks in the devastated Chateau Wood, a portion of one of the battlegrounds in the Ypres salient. All the identified men in this group served in 4th Australian Division artillery units.