Brass plaque attached to a brass box. "C. Aug. Schmidt Sohne Hamburg-unlenhorst no 645---1917 Betriebsdruck f Heizdof 16 atm. Ferzeugl. Dpf Z atm. The plaque is attached to a brass box by large flat screws which have the German Imperial Crown stamp. Label on back says "From an evaporator used to produce fresh water, SMS Dresden" Signed Dougall Campbell.