| Title | Hoogleraar Scheepsbouwkunde N. Kal |
| Description | N. Kal. Hoogleraar Scheepsbouwkunde TH Delft, 1922-1944 Reproductie. Jaartal 1961 is geschat. |
| Year | 1961 |
| Material | |
| Subject | TU Delft hoogleraren portretten |
| Photographer | Fotografische Dienst TU Delft |
| Faculty | Delft University of Technology |
| Location | Delft |
| Rights | (c) Delft University of Technology Creative Commons BY |