Well Known Text

COMPOUNDCRS["MML07 Grid + ODN height",PROJCRS["MML07 Grid",BASEGEOGCRS["MML07-IRF",DATUM["MML07 Intermediate Reference Frame",ELLIPSOID["GRS 1980",6378137,298.257222101,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",7019]],ID["EPSG",1271]],DEFININGTRANSFORMATION["ETRS89-GBR [OSNet v2009] to MML07-IRF (1)",ID["EPSG",9369]],ID["EPSG",9372]],CONVERSION["MML07-TM",METHOD["Transverse Mercator",ID["EPSG",9807]],PARAMETER["Latitude of natural origin",52.4500000000003,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8801]],PARAMETER["Longitude of natural origin",-0.85000000000028,ANGLEUNIT["degree",0.0174532925199433,ID["EPSG",9102]],ID["EPSG",8802]],PARAMETER["Scale factor at natural origin",1,SCALEUNIT["unity",1,ID["EPSG",9201]],ID["EPSG",8805]],PARAMETER["False easting",49350.157,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8806]],PARAMETER["False northing",108398.212,LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",8807]],ID["EPSG",9370]],CS[Cartesian,2,ID["EPSG",4400]],AXIS["Easting (E)",east],AXIS["Northing (N)",north],LENGTHUNIT["metre",1,ID["EPSG",9001]],ID["EPSG",9373]],VERTCRS["ODN height",VDATUM["Ordnance Datum Newlyn",ID["EPSG",5101]],CS[vertical,1,ID["EPSG",6499]],AXIS["Gravity-related height (H)",up],LENGTHUNIT["metre",1,ID["EPSG",9001]],GEOIDMODEL["ETRS89-GBR [OSNet v2009] to ODN height (2)",ID["EPSG",7711]],GEOIDMODEL["ETRS89 to ODN height (1)",ID["EPSG",10021]],ID["EPSG",5701]],ID["EPSG",9374]]