PROJCS["British_National_Grid",
    GEOGCS["GCS_OSGB_1936",
        DATUM["D_OSGB_1936",
            SPHEROID["Airy_1830",6377563.396,299.3249646]],
        PRIMEM["Greenwich",0],
        UNIT["Degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["False_Easting",400000],
    PARAMETER["False_Northing",-100000],
    PARAMETER["Central_Meridian",-2],
    PARAMETER["Scale_Factor",0.999601272],
    PARAMETER["Latitude_Of_Origin",49],
    UNIT["Meter",1]]