Firing a heavy trench mortar, Bestanddeelnr 158-1669
French Trench Mortar, 240MM, showing mounted piece ready for transporting, bomb and cartridge. Capt. H.T. Pease of 316th Battalion Trench Art. devised means by way of using this on wheels and then taking off, setting up quickly, and first shot drives spades in ground, which are on the bottom. This saves days of work of building rock base. Vitrey, Vernois, France