A coloured plan of the buildings and houses belonging to his Majesty's Office of Ordnance at Purfleet
Medium: Ink on paper
Plan of Purfleet in Essex. A magazine in Woolwich was damaged in an explosion and Act of Parliament was passed and land was purchased at Purfleet for a new magazine. Five new buildings were erected, each measuring approximately 140ft by 20ft. When full each magazine could hold ten thousand barrels of gunpowder. The potential for an explosion meant that the magazines were built with very thick walls and were positioned in hollows in the ground so that any explosion would be forced upwards. The Magazines stood within approximately 25 acres of ground.