GEOGCS["GCS_ATIG_geographiques_grades_Paris_gr",DATUM["D_ATF",SPHEROID["Plessis_1817",6376523.0,308.64]],PRIMEM["Paris_RGS",2.33720833333333],UNIT["Grad",0.0157079632679489]],VERTCS["NGF-LALLEMAND",VDATUM["NGF-LALLEMAND"],PARAMETER["Vertical_Shift",0.0],PARAMETER["Direction",1.0],UNIT["Meter",1.0]]