E04550
Photograph E04550 First World War, 1914-1918Messines Sector, Belgium. 17 February 1918. Australians engaged in constructing a reinforced concrete observation post under a camouflage screen near Broken Tree House.

The Australian War Memorial Collection. Test site
Messines Sector, Belgium. 17 February 1918. A camouflaged observation post in the course of construction near Broken Tree House, in the Messines Sector, when the Australians were engaged in strengthening the Corps Defence System in this sector.
Messines Sector, Belgium. 17 February 1918. Australians engaged in constructing a reinforced concrete observation post under a camouflage screen near Broken Tree House.

Messines Sector, Belgium. 16 February 1918. An observation post, constructed of metal, camouflaged to represent the trunk of a tree at Warnane Lodge, in the Messines Sector. It was used by Australians

Messines Sector, Belgium. 17 February 1918. An old German machine gun and observation post near Ungodly Avenue in the Messines Sector, which was used by various battalions as a First Aid Post.

Messines Sector, Belgium. 17 February 1918. An old German machine gun and observation post near Ungodly Avenue in the Messines Sector, which was used by various battalions as a First Aid Post.

The heavily camouflaged entrance to a trench in the Corps Defence System near Gordon Road, an area which was occupied by troops of the 5th Australian Division in February 1918.

Messines Sector, Belgium. 22 January 1918. A group of members of the 2nd Division at the entrance to the Catacombs - a system of tunnels built in Hill 63, in the Messines Sector. Note the cut out kang
