Departement Publieke WerkenPublieke Werke Dept.Wierda, Sytze Wopkes, 1839-19112014-08-262014-08-261895-08-312014-08-26http://hdl.handle.net/2263/41699Digitised version of National Archive file S.2/203. Drawings: "Halfaanzicht, Halwe lengtedoorsnede" (Half Elevation, Half Longitudinal Section) of the bridge across the Vaal River, Ermelo. Signed by "S.W. Wierda, Hoofd van Dept van Publieke Werken""Behoort by Bestek no 242"PlanPDF, JPEGNational Archives; Digital rights: University of PretoriaBridge designVaal RiverErmeloPlan or blueprint