PROJCS["Sierra Leone 1968 / UTM zone 28N",
    GEOGCS["Sierra Leone 1968",
        DATUM["Sierra_Leone_1968",
            SPHEROID["Clarke 1880 (RGS)",6378249.145,293.465,
                AUTHORITY["EPSG","7012"]],
            TOWGS84[-88,4,101,0,0,0,0],
            AUTHORITY["EPSG","6175"]],
        PRIMEM["Greenwich",0,
            AUTHORITY["EPSG","8901"]],
        UNIT["degree",0.01745329251994328,
            AUTHORITY["EPSG","9122"]],
        AUTHORITY["EPSG","4175"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-15],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    AUTHORITY["EPSG","2161"],
    AXIS["Easting",EAST],
    AXIS["Northing",NORTH]]