Weekly reports (1-236) with listing of employed personnel, materials supplied and work performed prepared by foreman M.G. Stokvis by order of contractors J. Schoonenburg and C.J. Maks on behalf of the "state and progress of the works belonging to the first lot of the superstructure, specifications 53 bis," seen and approved by the extraordinary foreman R. Rijnja and verified by J. van Tetterode.