GEOGCS["Unknown datum based upon the Clarke 1880 (IGN) ellipsoid (deprecated)",DATUM["Not_specified_based_on_Clarke_1880_IGN_ellipsoid",SPHEROID["Clarke 1880 (IGN)",6378249.2,293.466021293627,AUTHORITY["EPSG","7011"]],AUTHORITY["EPSG","6011"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4011"]]