Between J.P. van Bruggen, G. Drexhage, A. Bodon and J.J. Sterkenburg to form the firm: "Ir. J.P. van Bruggen C.I., G. Drexhage, Ir. J.J. Sterkenburg C.I. and A. Bodon, engineers and architects," successors to the firm of A. van der Steur and W.A.C. Herman de Groot, located at Schiekade 166 in Rotterdam,