Papers concerning factories and the Ministry of Munitions, 1916-1918, (fols. 1-92) 'National Shell Factories: central purchase proposals, materials, machinery etc. and allied matters', 1916; (fols. 93-101) correspondence with Lord Chetwynd, Chilwell National Shell Filling Factory, 1916; (fols. 102-164) 'Investigations of costs: policy controlled establishments, Aug.-Sept. 1916', discussions between the Ministry of Munitions, Admiralty and War Office; (fols. 165-178) correspondence, 1917-1918, relating to the construction of rolling mills at Southampton; (fols. 179-278) letters of condolence and press releases, Jan.-June. 1917, following the explosion at Brunner Mond & Co.'s Silvertown explosives factory, East London, 19 Jan. 1917; and (fols. 279-339) Report on costs and efficiencies for H.M. Factories controlled by Factories Branch, Department of Explosives Supply (HMSO, Feb.1918).