PROJCRS["ATF (Paris) / Nord de Guerre",BASEGEOGCRS["ATF (Paris)",DATUM["Ancienne Triangulation Francaise (Paris)",ELLIPSOID["Plessis 1817",6376523,308.64,LENGTHUNIT["metre",1]]],PRIMEM["Paris RGS",2.33720833333333,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4901]],CONVERSION["Nord de Guerre",METHOD["Lambert Conic Conformal (1SP)",ID["EPSG",9801]],PARAMETER["Latitude of natural origin",55,ANGLEUNIT["grad",0.0157079632679489],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",6,ANGLEUNIT["grad",0.0157079632679489],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",0.99950908,SCALEUNIT["unity",1],ID["EPSG",8805]],PARAMETER["False easting",500000,LENGTHUNIT["metre",1],ID["EPSG",8806]],PARAMETER["False northing",300000,LENGTHUNIT["metre",1],ID["EPSG",8807]]],CS[Cartesian,2],AXIS["easting (X)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing (Y)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering survey, topographic mapping."],AREA["France - Alsace."],BBOX[47.42,6.84,49.07,8.23]],ID["EPSG",27500]]