GEOGCS["Unspecified datum based upon the Clarke 1866 Authalic Sphere (deprecated)",
    DATUM["Not_specified_based_on_Clarke_1866_Authalic_Sphere",
        SPHEROID["Clarke 1866 Authalic Sphere",6370997,0,
            AUTHORITY["EPSG","7052"]],
        AUTHORITY["EPSG","6052"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4052"]]