GEOGCS["Unknown datum based upon the Clarke 1866 ellipsoid",
    DATUM["Not_specified_based_on_Clarke_1866_ellipsoid",
        SPHEROID["Clarke 1866",6378206.4,294.9786982139006,
            AUTHORITY["EPSG","7008"]],
        AUTHORITY["EPSG","6008"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["EPSG","4008"]]