PROJCS["Custom",
    GEOGCS["GCS_WGS_1984",
        DATUM["D_WGS_1984",
            SPHEROID["WGS_1984",6378137,298.257223563]],
        PRIMEM["Greenwich",0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Gauss_Kruger"],
    PARAMETER["False_Easting",6500000],
    PARAMETER["False_Northing",0],
    PARAMETER["Central_Meridian",-57],
    PARAMETER["Scale_Factor",1],
    PARAMETER["Central_Parallel",-90],
    UNIT["Meter",1]]