RD Old - EPSG:28991

WKT

PROJCS["RD_Old", 
	GEOGCS["GCS_Amersfoort", 
		DATUM["D_Amersfoort", 
			SPHEROID["Bessel_1841", 6377397.155, 299.1528128]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Double_Stereographic"], 
	PARAMETER["False_Easting", 0.0], 
	PARAMETER["False_Northing", 0.0], 
	PARAMETER["Central_Meridian", 5.38763888888889], 
	PARAMETER["Scale_Factor", 0.9999079], 
	PARAMETER["Latitude_Of_Origin", 52.15616055555555], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["RD_Old", 
	BASEGEOGCRS["GCS_Amersfoort", 
		DATUM["D_Amersfoort", 
			ELLIPSOID["Bessel_1841", 6377397.155, 299.1528128]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Double_Stereographic", 
		METHOD["Double_Stereographic"], 
		PARAMETER["False_Easting", 0.0], 
		PARAMETER["False_Northing", 0.0], 
		PARAMETER["Central_Meridian", 5.38763888888889], 
		PARAMETER["Scale_Factor", 0.9999079], 
		PARAMETER["Latitude_Of_Origin", 52.15616055555555]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "28991"]]

Data from @esri/proj-codes

{
  "wkid": 28991,
  "latestWkid": 28991,
  "gcsWkid": 4289,
  "macro": "PE_PCS_AMERSFOORT_RD_OLD",
  "name": "RD_Old",
  "wkt": "PROJCS[\"RD_Old\",GEOGCS[\"GCS_Amersfoort\",DATUM[\"D_Amersfoort\",SPHEROID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Double_Stereographic\"],PARAMETER[\"False_Easting\",0.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",5.38763888888889],PARAMETER[\"Scale_Factor\",0.9999079],PARAMETER[\"Latitude_Of_Origin\",52.15616055555555],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"RD_Old\",BASEGEOGCRS[\"GCS_Amersfoort\",DATUM[\"D_Amersfoort\",ELLIPSOID[\"Bessel_1841\",6377397.155,299.1528128]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Double_Stereographic\",METHOD[\"Double_Stereographic\"],PARAMETER[\"False_Easting\",0.0],PARAMETER[\"False_Northing\",0.0],PARAMETER[\"Central_Meridian\",5.38763888888889],PARAMETER[\"Scale_Factor\",0.9999079],PARAMETER[\"Latitude_Of_Origin\",52.15616055555555]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"28991\"]]",
  "description": "RD Old",
  "authority": "EPSG",
  "version": "4.5(8.0.1)",
  "deprecated": "no",
  "areaname": "Netherlands - onshore",
  "extent": {
    "slat": 50.75,
    "nlat": 53.7,
    "llon": 3.2,
    "rlon": 7.22
  }
}