GEOGCS["Unknown datum based upon the Clarke 1858 ellipsoid (deprecated)",
    DATUM["Not_specified_based_on_Clarke_1858_ellipsoid",
        SPHEROID["Clarke 1858",6378293.64520876,294.260676369261,
            AUTHORITY["EPSG","7007"]],
        AUTHORITY["EPSG","6007"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4007"]]