GEOGCS["Datum 73",
    DATUM["Datum_73",
        SPHEROID["International 1924",6378388,297],
        TOWGS84[-238.2,85.2,29.9,0.166,0.046,1.248,2.03]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4274"]]