EPSG:4608 - NAD27(76)

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "GeographicCRS",
  "name": "NAD27(76)",
  "datum": {
    "type": "GeodeticReferenceFrame",
    "name": "North American Datum 1927 (1976)",
    "ellipsoid": {
      "name": "Clarke 1866",
      "semi_major_axis": 6378206.4,
      "semi_minor_axis": 6356583.8
    }
  },
  "coordinate_system": {
    "subtype": "ellipsoidal",
    "axis": [
      {
        "name": "Geodetic latitude",
        "abbreviation": "Lat",
        "direction": "north",
        "unit": "degree"
      },
      {
        "name": "Geodetic longitude",
        "abbreviation": "Lon",
        "direction": "east",
        "unit": "degree"
      }
    ]
  },
  "scope": "Geodesy.",
  "area": "Canada - Ontario.",
  "bbox": {
    "south_latitude": 41.67,
    "west_longitude": -95.16,
    "north_latitude": 56.9,
    "east_longitude": -74.35
  },
  "id": {
    "authority": "EPSG",
    "code": 4608
  }
}

{'crs_wkt': 'GEOGCRS["NAD27(76)",DATUM["North American Datum 1927 '
            '(1976)",ELLIPSOID["Clarke '
            '1866",6378206.4,294.978698213898,LENGTHUNIT["metre",1]]],PRIMEM["Greenwich",0,ANGLEUNIT["degree",0.0174532925199433]],CS[ellipsoidal,2],AXIS["geodetic '
            'latitude '
            '(Lat)",north,ORDER[1],ANGLEUNIT["degree",0.0174532925199433]],AXIS["geodetic '
            'longitude '
            '(Lon)",east,ORDER[2],ANGLEUNIT["degree",0.0174532925199433]],USAGE[SCOPE["Geodesy."],AREA["Canada '
            '- Ontario."],BBOX[41.67,-95.16,56.9,-74.35]],ID["EPSG",4608]]',
 'geographic_crs_name': 'NAD27(76)',
 'grid_mapping_name': 'latitude_longitude',
 'horizontal_datum_name': 'North American Datum 1927 (1976)',
 'inverse_flattening': 294.9786982138982,
 'longitude_of_prime_meridian': 0.0,
 'prime_meridian_name': 'Greenwich',
 'reference_ellipsoid_name': 'Clarke 1866',
 'semi_major_axis': 6378206.4,
 'semi_minor_axis': 6356583.8}