COMPD_CS["NTF geographiques Paris (gr) et NGF-IGN 1969",GEOGCS["NTF geographiques Paris (gr)",DATUM["Nouvelle_Triangulation_Francaise_Paris",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627,AUTHORITY["EPSG","7011"]],AUTHORITY["EPSG","6807"]],PRIMEM["Paris",2.33722917,AUTHORITY["EPSG","8903"]],UNIT["grad",0.0157079632679489,AUTHORITY["EPSG","9105"]],AUTHORITY["IGNF","NTFPGRAD"]],VERT_CS["NGF-IGN 1969",VERT_DATUM["NGF-IGN 1969",2005,AUTHORITY["IGNF","REA003"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["IGNF","IGN69"]],AUTHORITY["IGNF","NTFPGRAD.IGN69"]]