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","NTFP"]]