The Mills are an Anchor Point of the European Route of Industrial Heritage, set in 175 acres (0.71 km2) of parkland and containing 21 buildings of major historical importance.The deputy comptroller of the Royal Laboratory at Woolwich, Major, later Lieutenant General, Sir William Congreve advocated that the Waltham Abbey Mills should be purchased by the Crown to ensure secure supplies and to establish what would now be called a centre of excellence for development of manufacturing processes and to establish quality and cost standards by which private contractors could be judged.[1] Reflecting this, the mills were able to respond successfully in volume and quality to the massive increases in demand which arose over the period of the French Revolution and Napoleonic Wars from 1789, culminating in the victory at Waterloo in 1815.The East Flank, including a long range of Cordite incorporating mills, designed by Harry Bell Measures, was built at this time.As a research centre Waltham Abbey was responsible for military propellant and high explosives and expanded into the increasingly significant field of rocket propellants, solid and liquid and a range of specialised applications, e.g. 'snifters' for altering space vehicles direction when in flight, cartridges for firing aircraft ejector seats, engine and generator starter cartridges – these applications have been called 'a measured strong shove'.Visitors can see exhibits related to gunpowder making, tour the site on a land train[7] An attempt to demolish the cordite mills and replace them with dormitories for young people staying at a children's activity centre was rejected by Epping Forest District Council in 2016 after exposure in the national press.[11] After the closure of ERDE, the inherited archive material passed through a number of hands and storage locations, particularly in the latter period before opening to the public, when outside staff from the firm designing the exhibition had to have free access.The opportunity has therefore been taken to start a ground-up exercise involving a complete check of the holding and the design of computer databases of the material in order to produce the digital catalogue.