GWPBS22 Grid - EPSG:10212

WKT

PROJCS["GWPBS22_Grid", 
	GEOGCS["GWPBS22-IRF", 
		DATUM["GWPBS22_Intermediate_Reference_Frame", 
			SPHEROID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Lambert_Conformal_Conic"], 
	PARAMETER["False_Easting", 168854.016], 
	PARAMETER["False_Northing", 193447.117], 
	PARAMETER["Central_Meridian", -2.65], 
	PARAMETER["Standard_Parallel_1", 51.4], 
	PARAMETER["Standard_Parallel_2", 51.9], 
	PARAMETER["Latitude_Of_Origin", 51.65], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["GWPBS22_Grid", 
	BASEGEOGCRS["GWPBS22-IRF", 
		DATUM["GWPBS22_Intermediate_Reference_Frame", 
			ELLIPSOID["GRS_1980", 6378137.0, 298.257222101]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Lambert_Conformal_Conic", 
		METHOD["Lambert_Conformal_Conic"], 
		PARAMETER["False_Easting", 168854.016], 
		PARAMETER["False_Northing", 193447.117], 
		PARAMETER["Central_Meridian", -2.65], 
		PARAMETER["Standard_Parallel_1", 51.4], 
		PARAMETER["Standard_Parallel_2", 51.9], 
		PARAMETER["Latitude_Of_Origin", 51.65]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "10212"]]

Data from @esri/proj-codes

{
  "wkid": 10212,
  "latestWkid": 10212,
  "gcsWkid": 10209,
  "macro": "PE_PCS_GWPBS22_GRID",
  "name": "GWPBS22_Grid",
  "wkt": "PROJCS[\"GWPBS22_Grid\",GEOGCS[\"GWPBS22-IRF\",DATUM[\"GWPBS22_Intermediate_Reference_Frame\",SPHEROID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",168854.016],PARAMETER[\"False_Northing\",193447.117],PARAMETER[\"Central_Meridian\",-2.65],PARAMETER[\"Standard_Parallel_1\",51.4],PARAMETER[\"Standard_Parallel_2\",51.9],PARAMETER[\"Latitude_Of_Origin\",51.65],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"GWPBS22_Grid\",BASEGEOGCRS[\"GWPBS22-IRF\",DATUM[\"GWPBS22_Intermediate_Reference_Frame\",ELLIPSOID[\"GRS_1980\",6378137.0,298.257222101]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Lambert_Conformal_Conic\",METHOD[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",168854.016],PARAMETER[\"False_Northing\",193447.117],PARAMETER[\"Central_Meridian\",-2.65],PARAMETER[\"Standard_Parallel_1\",51.4],PARAMETER[\"Standard_Parallel_2\",51.9],PARAMETER[\"Latitude_Of_Origin\",51.65]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"10212\"]]",
  "description": "GWPBS22 Grid",
  "authority": "EPSG",
  "version": "10.079(13.2.0)",
  "deprecated": "no",
  "areaname": "UK - London to Swansea",
  "extent": {
    "slat": 51.25,
    "nlat": 52.06,
    "llon": -4.26,
    "rlon": -0.1
  }
}