GEOGCS["Tristan 1968",DATUM["Tristan_1968",SPHEROID["International 1924",6378388,297],TOWGS84[-632,438,-609,0,0,0,0]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4734"]]