Baltic 1957 depth - EPSG:8358

WKT

VERTCS["Baltic_1957_depth", 
	VDATUM["Baltic_1957"], 
	PARAMETER["Vertical_Shift", 0.0], 
	PARAMETER["Direction", -1.0], 
	UNIT["Meter", 1.0]]

WKT2

VERTCRS["Baltic_1957_depth", 
	VDATUM["Baltic_1957"], 
	CS[vertical, 1], 
	AXIS["Gravity-related height (H)", down, 
		LENGTHUNIT["Meter", 1.0]], 
	ID["EPSG", "8358"]]

Data from @esri/proj-codes

{
  "wkid": 8358,
  "latestWkid": 8358,
  "macro": "PE_VCS_BALTIC_1957_D",
  "name": "Baltic_1957_depth",
  "wkt": "VERTCS[\"Baltic_1957_depth\",VDATUM[\"Baltic_1957\"],PARAMETER[\"Vertical_Shift\",0.0],PARAMETER[\"Direction\",-1.0],UNIT[\"Meter\",1.0]]",
  "wkt2": "VERTCRS[\"Baltic_1957_depth\",VDATUM[\"Baltic_1957\"],CS[vertical,1],AXIS[\"Gravity-related height (H)\",down,LENGTHUNIT[\"Meter\",1.0]],ID[\"EPSG\",\"8358\"]]",
  "description": "Baltic 1957 depth",
  "authority": "EPSG",
  "version": "9.2.2(10.8.0)",
  "deprecated": "no",
  "areaname": "Europe - Czechoslovakia",
  "extent": {
    "slat": 47.73,
    "nlat": 51.06,
    "llon": 12.09,
    "rlon": 22.56
  }
}