Nigeria West Belt - EPSG:26391

WKT

PROJCS["Nigeria_West_Belt", 
	GEOGCS["GCS_Minna", 
		DATUM["D_Minna", 
			SPHEROID["Clarke_1880_RGS", 6378249.145, 293.465]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Transverse_Mercator"], 
	PARAMETER["False_Easting", 230738.26], 
	PARAMETER["False_Northing", 0.0], 
	PARAMETER["Central_Meridian", 4.5], 
	PARAMETER["Scale_Factor", 0.99975], 
	PARAMETER["Latitude_Of_Origin", 4.0], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["Nigeria_West_Belt", 
	BASEGEOGCRS["GCS_Minna", 
		DATUM["D_Minna", 
			ELLIPSOID["Clarke_1880_RGS", 6378249.145, 293.465]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Transverse_Mercator", 
		METHOD["Transverse_Mercator"], 
		PARAMETER["False_Easting", 230738.26], 
		PARAMETER["False_Northing", 0.0], 
		PARAMETER["Central_Meridian", 4.5], 
		PARAMETER["Scale_Factor", 0.99975], 
		PARAMETER["Latitude_Of_Origin", 4.0]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "26391"]]

Data from @esri/proj-codes

{
  "wkid": 26391,
  "latestWkid": 26391,
  "gcsWkid": 4263,
  "macro": "PE_PCS_MINNA_NIGERIA_WEST_BELT",
  "name": "Nigeria_West_Belt",
  "wkt": "PROJCS[\"Nigeria_West_Belt\",GEOGCS[\"GCS_Minna\",DATUM[\"D_Minna\",SPHEROID[\"Clarke_1880_RGS\",6378249.145,293.465]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",230738.26],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",4.5],PARAMETER[\"Scale_Factor\",0.99975],PARAMETER[\"Latitude_Of_Origin\",4.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"Nigeria_West_Belt\",BASEGEOGCRS[\"GCS_Minna\",DATUM[\"D_Minna\",ELLIPSOID[\"Clarke_1880_RGS\",6378249.145,293.465]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Transverse_Mercator\",METHOD[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",230738.26],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",4.5],PARAMETER[\"Scale_Factor\",0.99975],PARAMETER[\"Latitude_Of_Origin\",4.0]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"26391\"]]",
  "description": "Nigeria West Belt",
  "authority": "EPSG",
  "version": "2.1(3.0.1)",
  "deprecated": "no",
  "areaname": "Nigeria - west of 6.5~E",
  "extent": {
    "slat": 3.57,
    "nlat": 13.9,
    "llon": 2.69,
    "rlon": 6.5
  }
}