GEOGCS["GCS_Voirol_1875_Grad",DATUM["Voirol_1875",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627,AUTHORITY["EPSG","7011"]],AUTHORITY["EPSG","6304"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["grad",0.0157079632679489,AUTHORITY["EPSG","9105"]],AUTHORITY["ESRI","104139"]]