IJ Tunnel Report Appendix 31-01-31:

map of Amsterdam, scale 1:25,000
various graphically reproduced statistics, e.g. traffic growth
maps of North Holland, scale 1:200,000
situation drawings IJ banks, scale 1:2500 and 1:400
floor plans and cross-sections, scale 1:200
graphic clarification of various building and construction methods, no scale
map of main roads and railroads North Holland, scale 1:200,000

color prints on paper, possibly partly colored in afterwards (lines graphs?)
numbering of drawings on front and verso