Trucial Coast 1948 - EPSG:4303

WKT

GEOGCS["GCS_Trucial_Coast_1948", 
	DATUM["D_Trucial_Coast_1948", 
		SPHEROID["Helmert_1906", 6378200.0, 298.3]], 
	PRIMEM["Greenwich", 0.0], 
	UNIT["Degree", 0.0174532925199433]]

WKT2

GEOGCRS["GCS_Trucial_Coast_1948", 
	DATUM["D_Trucial_Coast_1948", 
		ELLIPSOID["Helmert_1906", 6378200.0, 298.3]], 
	PRIMEM["Greenwich", 0.0], 
	CS[ellipsoidal, 2], 
	AXIS["Latitude (lat)", north, 
		ORDER[1]], 
	AXIS["Longitude (lon)", east, 
		ORDER[2]], 
	ANGLEUNIT["Degree", 0.0174532925199433], 
	ID["EPSG", "4303"]]

Data from @esri/proj-codes

{
  "wkid": 4303,
  "latestWkid": 4303,
  "macro": "PE_GCS_TRUCIAL_COAST_1948",
  "name": "GCS_Trucial_Coast_1948",
  "wkt": "GEOGCS[\"GCS_Trucial_Coast_1948\",DATUM[\"D_Trucial_Coast_1948\",SPHEROID[\"Helmert_1906\",6378200.0,298.3]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]",
  "wkt2": "GEOGCRS[\"GCS_Trucial_Coast_1948\",DATUM[\"D_Trucial_Coast_1948\",ELLIPSOID[\"Helmert_1906\",6378200.0,298.3]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433],ID[\"EPSG\",\"4303\"]]",
  "description": "Trucial Coast 1948",
  "authority": "EPSG",
  "version": "6.5(3.0.1)",
  "deprecated": "no",
  "areaname": "UAE - Abu Dhabi and Dubai - onshore",
  "extent": {
    "slat": 22.63,
    "nlat": 25.34,
    "llon": 51.56,
    "rlon": 56.03
  }
}