VERT_CS["Lyttelton 1937 height",
    VERT_DATUM["Lyttelton 1937",2005,
        AUTHORITY["EPSG","5161"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","5763"]]