Ernest Brooks: Men of the Wiltshire Regiment waving their helmets as they march along the Acheux road to the trenches.
The pre-Dreadnought battleship HMS AGAMEMNON, which served in the Mediterranean during the First World War.
A sergeant of the Royal Flying Corps demonstrates a C type aerial reconnaissance camera fixed to the fuselage of a BE2c aircraft, 1916.
Forward scouts of the 9th Hodson's Horse, an Indian cavalry regiment, pause to consult a map, near Vraignes, April 1917.
Experimental camouflage on the fuselage of a Sopwith camel, developed during the First World War to disguise the aircraft's direction of flight.
Members of the Women's Land Army climbing over a gate on a British farm during the First World War.
Still from the British film "The Battle of the Somme". The image is part of a sequence introduced by a caption reading "British Tommies rescuing a comrade under shell fire".
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.
Aerial photograph showing the opposing trench systems between Loos and Hulluch in July 1917.
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.
Still from the film "The Battle of the Somme" allegedly showing British troops advancing at the start of the battle on 1 July 1916. It is now accepted that this scene was staged for the camera at a training school behind the lines.
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