Reunion 1947 TM Reunion - EPSG:3727

WKT

PROJCS["Reunion_1947_TM_Reunion", 
	GEOGCS["GCS_Reunion_1947", 
		DATUM["D_Reunion_1947", 
			SPHEROID["International_1924", 6378388.0, 297.0]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Transverse_Mercator"], 
	PARAMETER["False_Easting", 160000.0], 
	PARAMETER["False_Northing", 50000.0], 
	PARAMETER["Central_Meridian", 55.53333333333333], 
	PARAMETER["Scale_Factor", 1.0], 
	PARAMETER["Latitude_Of_Origin", -21.11666666666667], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["Reunion_1947_TM_Reunion", 
	BASEGEOGCRS["GCS_Reunion_1947", 
		DATUM["D_Reunion_1947", 
			ELLIPSOID["International_1924", 6378388.0, 297.0]], 
		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", 160000.0], 
		PARAMETER["False_Northing", 50000.0], 
		PARAMETER["Central_Meridian", 55.53333333333333], 
		PARAMETER["Scale_Factor", 1.0], 
		PARAMETER["Latitude_Of_Origin", -21.11666666666667]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "3727"]]

Data from @esri/proj-codes

{
  "wkid": 3727,
  "latestWkid": 3727,
  "gcsWkid": 4626,
  "macro": "PE_PCS_REUNION_1947_TM_REUNION",
  "name": "Reunion_1947_TM_Reunion",
  "wkt": "PROJCS[\"Reunion_1947_TM_Reunion\",GEOGCS[\"GCS_Reunion_1947\",DATUM[\"D_Reunion_1947\",SPHEROID[\"International_1924\",6378388.0,297.0]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Transverse_Mercator\"],PARAMETER[\"False_Easting\",160000.0],PARAMETER[\"False_Northing\",50000.0],PARAMETER[\"Central_Meridian\",55.53333333333333],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",-21.11666666666667],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"Reunion_1947_TM_Reunion\",BASEGEOGCRS[\"GCS_Reunion_1947\",DATUM[\"D_Reunion_1947\",ELLIPSOID[\"International_1924\",6378388.0,297.0]],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\",160000.0],PARAMETER[\"False_Northing\",50000.0],PARAMETER[\"Central_Meridian\",55.53333333333333],PARAMETER[\"Scale_Factor\",1.0],PARAMETER[\"Latitude_Of_Origin\",-21.11666666666667]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"3727\"]]",
  "description": "Reunion 1947 TM Reunion",
  "authority": "EPSG",
  "version": "6.13(9.3.0.0)",
  "deprecated": "no",
  "areaname": "Reunion - onshore",
  "extent": {
    "slat": -21.42,
    "nlat": -20.81,
    "llon": 55.16,
    "rlon": 55.91
  }
}