Hong Kong 1980 - ESRI:104104

WKT

GEOGCS["GCS_Hong_Kong_1980", 
	DATUM["D_Hong_Kong_1980", 
		SPHEROID["International_1924", 6378388.0, 297.0]], 
	PRIMEM["Greenwich", 0.0], 
	UNIT["Degree", 0.0174532925199433]]

WKT2

GEOGCRS["GCS_Hong_Kong_1980", 
	DATUM["D_Hong_Kong_1980", 
		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], 
	ID["Esri", "4611"]]

Data from @esri/proj-codes

{
  "wkid": 104104,
  "latestWkid": 4611,
  "macro": "PE_GCS_HONG_KONG_1980",
  "name": "GCS_Hong_Kong_1980",
  "wkt": "GEOGCS[\"GCS_Hong_Kong_1980\",DATUM[\"D_Hong_Kong_1980\",SPHEROID[\"International_1924\",6378388.0,297.0]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]",
  "wkt2": "GEOGCRS[\"GCS_Hong_Kong_1980\",DATUM[\"D_Hong_Kong_1980\",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],ID[\"Esri\",\"4611\"]]",
  "description": "Hong Kong 1980",
  "authority": "Esri",
  "version": "8.1.0",
  "deprecated": "codechange",
  "areaname": "Hong Kong",
  "extent": {
    "slat": 22.13,
    "nlat": 22.58,
    "llon": 113.76,
    "rlon": 114.51
  }
}