Departement Publieke WerkenPublieke Werke Dept.Wierda, Sytze Wopkes, 1839-19112014-08-262014-08-261896-12-052014-08-26http://hdl.handle.net/2263/41734Digitised version of National Archive file S.3/615. Detail of the grid above the open corridors, Potchefstroom Prison, signed by "S.W. Wierda, Hoofd van Publieke Werken"Note on plan: "Behoort by Bestek no 421"PlanPDF, JPEGNational Archives; Digital rights: University of PretoriaPrisonPotchefstroomPlan or blueprint