Departement Publieke WerkenPublieke Werke Dept.Wierda, Sytze Wopkes, 1839-19112014-08-262014-08-261897-06-012014-08-26http://hdl.handle.net/2263/41670Digitised version of National Archive file S.3/1791. Sketch plan of additions to the Post and Telegraph Office, HeidelbergSketch planPDF, JPEGNational Archives; Digital rights: University of PretoriaPost officeHeidelbergSchetsplan, Uitbreiding van het Post- en Telegraafkantoor te HeidelbergSketch plan, additions to the Post and Telegraph Office at HeidelbergPlan or blueprint