Sahara (deprecated) - EPSG:26193

WKT

PROJCS["Sahara", 
	GEOGCS["GCS_Merchich", 
		DATUM["D_Merchich", 
			SPHEROID["Clarke_1880_IGN", 6378249.2, 293.4660212936265]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Lambert_Conformal_Conic"], 
	PARAMETER["False_Easting", 1200000.0], 
	PARAMETER["False_Northing", 400000.0], 
	PARAMETER["Central_Meridian", -5.4], 
	PARAMETER["Standard_Parallel_1", 26.1], 
	PARAMETER["Scale_Factor", 0.9996], 
	PARAMETER["Latitude_Of_Origin", 29.0], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["Sahara", 
	BASEGEOGCRS["GCS_Merchich", 
		DATUM["D_Merchich", 
			ELLIPSOID["Clarke_1880_IGN", 6378249.2, 293.4660212936265]], 
		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", 1200000.0], 
		PARAMETER["False_Northing", 400000.0], 
		PARAMETER["Central_Meridian", -5.4], 
		PARAMETER["Standard_Parallel_1", 26.1], 
		PARAMETER["Scale_Factor", 0.9996], 
		PARAMETER["Latitude_Of_Origin", 29.0]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "26193"]]

Data from @esri/proj-codes

{
  "wkid": 26193,
  "latestWkid": 26193,
  "gcsWkid": 4261,
  "macro": "PE_PCS_MERCHICH_SAHARA",
  "name": "Sahara",
  "wkt": "PROJCS[\"Sahara\",GEOGCS[\"GCS_Merchich\",DATUM[\"D_Merchich\",SPHEROID[\"Clarke_1880_IGN\",6378249.2,293.4660212936265]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Lambert_Conformal_Conic\"],PARAMETER[\"False_Easting\",1200000.0],PARAMETER[\"False_Northing\",400000.0],PARAMETER[\"Central_Meridian\",-5.4],PARAMETER[\"Standard_Parallel_1\",26.1],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",29.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"Sahara\",BASEGEOGCRS[\"GCS_Merchich\",DATUM[\"D_Merchich\",ELLIPSOID[\"Clarke_1880_IGN\",6378249.2,293.4660212936265]],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\",1200000.0],PARAMETER[\"False_Northing\",400000.0],PARAMETER[\"Central_Meridian\",-5.4],PARAMETER[\"Standard_Parallel_1\",26.1],PARAMETER[\"Scale_Factor\",0.9996],PARAMETER[\"Latitude_Of_Origin\",29.0]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"26193\"]]",
  "description": "Sahara (deprecated)",
  "authority": "EPSG",
  "version": "2.1(3.0.1)",
  "deprecated": "yes",
  "areaname": "Morocco - south of 27.9~N",
  "extent": {
    "slat": 21.06,
    "nlat": 27.9,
    "llon": -17,
    "rlon": -8.67
  }
}