GEOGCS["PSAD56",
    DATUM["Provisional_South_American_Datum_1956",
        SPHEROID["International 1924",6378388,297],
        TOWGS84[-60.31,245.935,31.008,-12.324,-3.755,7.37,0.447]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4248"]]