PROJECTION "proj=tmerc" "lat_0=49" "lon_0=-2" "k=0.9996012717" "x_0=400000" "y_0=-100000" "ellps=airy" "towgs84=535.948,-31.357,665.16,0.15,0.247,0.998,-21.689" "units=m" "no_defs" "type=crs" END