"Study for a Trench Mortar Firing at Evening. (no 3910)" image: a trench mortar position in a wood manned by four British soldiers. Two men ready the mortars, with one setting the fuses and another kneeling beside stacks of mortars ready to pass them on. The other two men stand either side of the weapon, one loading the mortars down into the barrel, the other, a Corporal, holding the barrel and looking over the parapet. A fallen tree trunk has been positioned horizontally to form the parapet of the position, which is also defended by barbed wire. The surrounding trees are largely stumps.