VERT_CS["DHHN12 height",
    VERT_DATUM["Deutsches Haupthoehennetz 1912",2005,
        AUTHORITY["EPSG","1161"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Gravity-related height",UP],
    AUTHORITY["EPSG","7699"]]