Departement Publieke WerkenPublieke Werke Dept.Wierda, Sytze Wopkes, 1839-19112014-08-262014-08-261893-012014-08-26http://hdl.handle.net/2263/41681Digitised version of National Archive file S.2/114. Additions to the Johannesburg Prison. "Plan begane grond" (Ground floor plan)Note: "Teekening no 1, Behoort bij Bestek no 137"PlanPDF, JPEGNational Archives; Digital rights: University of PretoriaPrisonJohannesburgPlan or blueprint