Departement Publieke WerkenPublieke Werke Dept.2014-08-262014-08-261896-11-122014-08-26http://hdl.handle.net/2263/41740Digitised version of National Archive file S.3/646 of "Instructions des Quecksilbermanometer nebst Marmapparatus" by M.O.Werner, Siviel Ingenieur, PretoriaSketch planPDF, JPEGNational Archives; Digital rights: University of PretoriaPost officeJohannesburgInstructions des Quecksilbermanometer nebst Marmapparatus [Post- en Telegraafkantoor te Johannesburg]Instructions for the quicksilver manometer beside the [?] apparatus [Post and Telegraph Office, Johannesburg]Plan or blueprint