PROJECTION "proj=tmerc" "lat_0=49.5" "lon_0=-2.41666666666667" "k=0.999997" "x_0=47000" "y_0=50000" "ellps=GRS80" "towgs84=-485.014055,-169.473618,-483.842943,7.78625453,4.39770887,4.10248899,0" "units=m" "no_defs" "type=crs" END