PROJCS["NZGD49 / Bluff Circuit",
    GEOGCS["NZGD49",
        DATUM["New_Zealand_Geodetic_Datum_1949",
            SPHEROID["International 1924",6378388,297],
            EXTENSION["PROJ4_GRIDS","nzgd2kgrid0005.gsb"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.0174532925199433,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4272"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",-46.6000096111111],
    PARAMETER["central_meridian",168.342872],
    PARAMETER["scale_factor",1],
    PARAMETER["false_easting",300002.66],
    PARAMETER["false_northing",699999.58],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AUTHORITY["EPSG","27232"]]