Departement Publieke WerkenPublieke Werke Dept.Wierda, Sytze Wopkes, 1839-19112014-08-262014-08-261896-09-072014-08-26http://hdl.handle.net/2263/41628Digitised version of National Archive file S.3/1179. Sketch plan of additions to prison, Martinus Wesselstroom, signed by "S.W. Wierda, Hoofd van Publieke Werken"Sketch planPDF, JPEGNational Archives; Digital rights: University of PretoriaPrisonsMartinus WesselstroomSchetsplan, uitbreiding; Gevangenis te M.W.StroomSketch plan of additions to the prison at Martinus WesselstroomPlan or blueprint