Jan Blanken, Hydraulic engineer involved in the developme... 1820
Portrait of Cornelis Jansz Meyer, Hydraulic Engineer 1650
Portrait of Menno Baron van Coehoorn (1641-1704). General... 1675
"Portrait of the Mining Engineer Nikolay Teplov" 1878
Cornelis Outshoorn (1810-75). Engineer and Architect 1850