COMPD_CS["PSHD93",
GEOGCS["PSD93",
DATUM["PDO_Survey_Datum_1993",
SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
AUTHORITY["EPSG","7012"]],
AUTHORITY["EPSG","6134"]],
PRIMEM["Greenwich",0,
AUTHORITY["EPSG","8901"]],
UNIT["degree",0.0174532925199433,
AUTHORITY["EPSG","9122"]],
AUTHORITY["EPSG","4134"]],
VERT_CS["PHD93 height",
VERT_DATUM["PDO Height Datum 1993",2005,
AUTHORITY["EPSG","5123"]],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AXIS["Gravity-related height",UP],
AUTHORITY["EPSG","5724"]],
AUTHORITY["EPSG","7410"]]