rise and progress of the British explosives industry / published under the auspices of the VIIth international congress of applied chemistry by its explosives section Gunpowder Factory, Waltham Abbey, Essex : an RCHME survey / [Royal Commission on the Historical Monuments of England ; projectleader Wayne Cocroft ; ed. Paul … Royal Gunpowder Factory, Waltham Abbey : plans and illustrations / Royal Commission on the Historical Monuments of England
