- CollectieRG-SCI - RG-SCI: Science Division
- Reeks1 - Physics
- Deelreeks1 - Physics Invoices, 1931-1989
- 1 - Physics Invoices, 1931-1949
- 7 more...
- Bestanddeel8 - Physics Invoices, 1938-1939
- Bestanddeel9 - Physics Invoices, 1939-1940
- Bestanddeel10 - Physics Invoices, 1940-1941
- Bestanddeel11 - Physics Invoices, 1941-1942
- Bestanddeel12 - Physics Invoices, 1942-1943
- Bestanddeel13 - Physics Invoices, 1943-1944
- Bestanddeel14 - Physics Invoices, 1944-1945
- Bestanddeel15 - Physics Invoices, 1945-1946
- Bestanddeel16 - Physics Invoices, 1946-1947
- 2 more...