Azores Occidental 1939 - EPSG:4182

WKT

GEOGCS["GCS_Azores_Occidental_1939", 
	DATUM["D_Azores_Occidental_Islands_1939", 
		SPHEROID["International_1924", 6378388.0, 297.0]], 
	PRIMEM["Greenwich", 0.0], 
	UNIT["Degree", 0.0174532925199433]]

WKT2

GEOGCRS["GCS_Azores_Occidental_1939", 
	DATUM["D_Azores_Occidental_Islands_1939", 
		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["EPSG", "4182"]]

Data from @esri/proj-codes

{
  "wkid": 4182,
  "latestWkid": 4182,
  "macro": "PE_GCS_AZORES_OCCIDENTAL_1939",
  "name": "GCS_Azores_Occidental_1939",
  "wkt": "GEOGCS[\"GCS_Azores_Occidental_1939\",DATUM[\"D_Azores_Occidental_Islands_1939\",SPHEROID[\"International_1924\",6378388.0,297.0]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]]",
  "wkt2": "GEOGCRS[\"GCS_Azores_Occidental_1939\",DATUM[\"D_Azores_Occidental_Islands_1939\",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[\"EPSG\",\"4182\"]]",
  "description": "Azores Occidental 1939",
  "authority": "EPSG",
  "version": "6.5(9.0.0)",
  "deprecated": "no",
  "areaname": "Portugal - Azores W - onshore",
  "extent": {
    "slat": 39.3,
    "nlat": 39.77,
    "llon": -31.34,
    "rlon": -31.02
  }
}