'In the firing line at Passchendale, we repulse repeated Bosche counter attacks of great violence', 1917 (c)

Stereoscopic photograph, World War One, Western Front (1914-1918), 1916. While photographers were active at the Front, many scenes were staged for film and still photography.

British or Commonwealth soldiers take cover behind a makeshift earthwork or crater wall and look out over a landscape of shattered trees. Passchendale, or the Third Battle of Ypres, has become synonymous with the horrors of trench warfare.

Stereographs consist of two identical photographs paired in such a way that when seen through a special viewing instrument, a stereoscope, they appear as a three-dimensional images. By 1899 the photographs were mounted on thick card that was given a slight curvature to increase the illusion of depth.