I have received a box with stuff from Smit International that was about to be disposed of. There are several sets of negatives which I will scan in due time. May I assume that the waste bin destination also solved the copyright issue? The photo therefore is by an unknown photographer who worked for Smit at the time. If considered unacceptable I will not post anything and delete this one.

The picture shows one of the prefabricated concrete parts of the Rotterdam Willems railway tunnel, about to be moved from its building location near the Botlek Bridge towards a position to be sunk in position. The five tugs are Smit Rusland, Frankrijk, Ierland, Denemarken and Finland. There are also two assisting pushers and a service vessel named Ram.