PROJCS["World_Polyconic",
    GEOGCS["SAD69",
        DATUM["South_American_Datum_1969",
            SPHEROID["GRS_1967_Truncated",6378160.0,298.25]],
        PRIMEM["Greenwich",0.0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Polyconic"],
    PARAMETER["False_Easting",0.0],
    PARAMETER["False_Northing",0.0],
    PARAMETER["Central_Meridian",-54.0],
    PARAMETER["Latitude_Of_Origin",0.0],
    UNIT["Meter",1.0]]