Layer Estimates:

Layer: WCRT_Boundary_erase (ID:0)
Count: 3
Extent:

XMin: -289055.613
YMin: -34304.1019000001
XMax: 676675.5
YMax: 1079594
Spatial Reference: PROJCS["OSGB 1936 / British National Grid",GEOGCS["OSGB 1936",DATUM["D_OSGB_1936",SPHEROID["Airy_1830",6377563.396,299.3249646]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["false_easting",400000.0],PARAMETER["false_northing",-100000.0],PARAMETER["central_meridian",-2.0],PARAMETER["scale_factor",0.9996012717],PARAMETER["latitude_of_origin",49.0],UNIT["Meter",1.0]]