GEOGCS["Mare IGN53 geographiques (dms)",
    DATUM["IGN53_Mare",
        SPHEROID["International 1924",6378388,297,
            AUTHORITY["EPSG","7022"]],
        AUTHORITY["EPSG","6641"]],
    PRIMEM["Greenwich",0,
        AUTHORITY["EPSG","8901"]],
    UNIT["degree",0.0174532925199433,
        AUTHORITY["EPSG","9122"]],
    AUTHORITY["IGNF","MARE53G"]]