- FondsMG 146 - W.O. Kupsch fonds
- Série organiqueJ. Audio-Visual Materials
- 26 en plus...
- PièceWOK 1-27 - Area of the Netherlands affected by flood on 31 January, 1931
- PièceWOK 1-28 - Extent of flooding in southwestern Netherlands
- PièceWOK 1-29 - Dune erosion from gales , North of Bergen aan Zee
- PièceWOK 1-30 - Flooding of Brouwershaven, island of Schouwen
- PièceWOK 1-31 - Rescuing people from trees after flood
- PièceWOK 1-32 - Water flowing through damaged dikes
- PièceWOK 1-33 - Photograph of water flooding over dike.
- PièceWOK 1-34 - Breach in dike on island of Schouwen
- PièceWOK 1-34 - Remains of a farm after winds and wave action
- 2270 en plus...