Copper coil from inside automatic evaporator, used to prepare drinkable water from sea water and to provide suitable water to compensate for leaks in engines and boilers, with main cylindrical vessel and copper heating coils, by Caird and Rayner Coppersmiths & Company, Limehouse, London, England, 1889-1902 Copper coil from inside automatic evaporator used to prepare drinkable water from sea water 1889-1902