Aerial photograph showing front line trenches and mine craters near Loos in 1917.
Munition workers painting shells at the National Shell Filling Factory No.6, Chilwell, Nottinghamshire in 1917.
A busy howitzer shop at Coventry Ordnance Works. Men and women work together as several gun barrels are transported overhead by pulleys.
Officers verses other ranks football match played by members of the 26th Divisional Ammunition Train near the city of Salonika, Christmas Day 1915.
A group of dog handlers stand with their dogs at the British Army kennels near Etaples, 20 April 1918.
A sister and a matron from Queen Alexandra's Imperial Military Nursing Service during the First World War.
A female munitions worker is lifted into the barrel of a 15-inch naval gun manufactured at the Ordnance Works, Coventry, during the First World War, in order to clean the rifling.
BE2c, two-seat reconnaissance aircraft, used by the Royal Flying Corps (RFC) during the First World War.
Still from the British documentary film 'The Battle of the Somme'. The image is part of a sequence purportedly showing British soldiers moving forward through wire at the start of the Battle of the Somme, 1 July 1916.
Ammunition limbers of 35th Field Battery, Royal Field Artillery, passing a corner of the shattered Delville Wood, Somme, 17th September 1916.
Carrying wounded across the battlefield under shell fire, Battle of Ginchy, Somme, 1916.
Horse-drawn ammunition limbers pass through the ruined village of Longueval, Somme, September 1916
2nd Battalion Gordon Highlanders marching to the trenches along Becordel-Fricourt Road, Somme, October 1916.
Working party of British troops on muddy ground near Bernafay Wood, Somme, November 1916
An advanced water supply point on the Mametz Road near Fricourt, Somme, July 1916.
Miss Mairi Chisholm, one of the 'Women of Pervyse' looking through binoculars in Pervyse.
A motorcyclist with the Women's Royal Air Force (WRAF) on a Clyno motorcycle combination.
Ernest Brooks: Men of the Wiltshire Regiment waving their helmets as they march along the Acheux road to the trenches.