GEOCCS["St Pierre Miquelon 1950 cartesiennes",
    DATUM["Saint_Pierre_et_Miquelon_1950",
        SPHEROID["Clarke 1866",6378206.4,294.978698213898,
            AUTHORITY["EPSG","7008"]],
        AUTHORITY["EPSG","6638"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["metre",1,
        AUTHORITY["EPSG","9001"]],
    AXIS["Geocentric X",OTHER],
    AXIS["Geocentric Y",OTHER],
    AXIS["Geocentric Z",NORTH],
    AUTHORITY["IGNF","STPM50"]]