EPSG:21780 - CH1903 (Bern) / LV03C

{
  "$schema": "https://proj.org/schemas/v0.7/projjson.schema.json",
  "type": "ProjectedCRS",
  "name": "CH1903 (Bern) / LV03C",
  "base_crs": {
    "name": "CH1903 (Bern)",
    "datum": {
      "type": "GeodeticReferenceFrame",
      "name": "CH1903 (Bern)",
      "ellipsoid": {
        "name": "Bessel 1841",
        "semi_major_axis": 6377397.155,
        "inverse_flattening": 299.1528128
      },
      "prime_meridian": {
        "name": "Bern",
        "longitude": 7.43958333333333
      }
    },
    "coordinate_system": {
      "subtype": "ellipsoidal",
      "axis": [
        {
          "name": "Geodetic latitude",
          "abbreviation": "Lat",
          "direction": "north",
          "unit": "degree"
        },
        {
          "name": "Geodetic longitude",
          "abbreviation": "Lon",
          "direction": "east",
          "unit": "degree"
        }
      ]
    },
    "id": {
      "authority": "EPSG",
      "code": 4801
    }
  },
  "conversion": {
    "name": "Swiss Oblique Mercator 1903C",
    "method": {
      "name": "Hotine Oblique Mercator (variant B)",
      "id": {
        "authority": "EPSG",
        "code": 9815
      }
    },
    "parameters": [
      {
        "name": "Latitude of projection centre",
        "value": 46.9524055555556,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8811
        }
      },
      {
        "name": "Longitude of projection centre",
        "value": 0,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8812
        }
      },
      {
        "name": "Azimuth at projection centre",
        "value": 90,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8813
        }
      },
      {
        "name": "Angle from Rectified to Skew Grid",
        "value": 90,
        "unit": "degree",
        "id": {
          "authority": "EPSG",
          "code": 8814
        }
      },
      {
        "name": "Scale factor at projection centre",
        "value": 1,
        "unit": "unity",
        "id": {
          "authority": "EPSG",
          "code": 8815
        }
      },
      {
        "name": "Easting at projection centre",
        "value": 0,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8816
        }
      },
      {
        "name": "Northing at projection centre",
        "value": 0,
        "unit": "metre",
        "id": {
          "authority": "EPSG",
          "code": 8817
        }
      }
    ]
  },
  "coordinate_system": {
    "subtype": "Cartesian",
    "axis": [
      {
        "name": "Easting",
        "abbreviation": "Y",
        "direction": "east",
        "unit": "metre"
      },
      {
        "name": "Northing",
        "abbreviation": "X",
        "direction": "north",
        "unit": "metre"
      }
    ]
  },
  "scope": "Engineering survey, topographic mapping.",
  "area": "Liechtenstein; Switzerland.",
  "bbox": {
    "south_latitude": 45.82,
    "west_longitude": 5.96,
    "north_latitude": 47.81,
    "east_longitude": 10.49
  },
  "id": {
    "authority": "EPSG",
    "code": 21780
  }
}

{'azimuth_of_central_line': 90.0,
 'crs_wkt': 'PROJCRS["CH1903 (Bern) / LV03C",BASEGEOGCRS["CH1903 '
            '(Bern)",DATUM["CH1903 (Bern)",ELLIPSOID["Bessel '
            '1841",6377397.155,299.1528128,LENGTHUNIT["metre",1]]],PRIMEM["Bern",7.43958333333333,ANGLEUNIT["degree",0.0174532925199433]],ID["EPSG",4801]],CONVERSION["Swiss '
            'Oblique Mercator 1903C",METHOD["Hotine Oblique Mercator (variant '
            'B)",ID["EPSG",9815]],PARAMETER["Latitude of projection '
            'centre",46.9524055555556,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8811]],PARAMETER["Longitude '
            'of projection '
            'centre",0,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8812]],PARAMETER["Azimuth '
            'at projection '
            'centre",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8813]],PARAMETER["Angle '
            'from Rectified to Skew '
            'Grid",90,ANGLEUNIT["degree",0.0174532925199433],ID["EPSG",8814]],PARAMETER["Scale '
            'factor at projection '
            'centre",1,SCALEUNIT["unity",1],ID["EPSG",8815]],PARAMETER["Easting '
            'at projection '
            'centre",0,LENGTHUNIT["metre",1],ID["EPSG",8816]],PARAMETER["Northing '
            'at projection '
            'centre",0,LENGTHUNIT["metre",1],ID["EPSG",8817]]],CS[Cartesian,2],AXIS["easting '
            '(Y)",east,ORDER[1],LENGTHUNIT["metre",1]],AXIS["northing '
            '(X)",north,ORDER[2],LENGTHUNIT["metre",1]],USAGE[SCOPE["Engineering '
            'survey, topographic mapping."],AREA["Liechtenstein; '
            'Switzerland."],BBOX[45.82,5.96,47.81,10.49]],ID["EPSG",21780]]',
 'false_easting': 0.0,
 'false_northing': 0.0,
 'geographic_crs_name': 'CH1903 (Bern)',
 'grid_mapping_name': 'oblique_mercator',
 'horizontal_datum_name': 'CH1903 (Bern)',
 'inverse_flattening': 299.1528128,
 'latitude_of_projection_origin': 46.95240555555556,
 'longitude_of_prime_meridian': 7.439583333333333,
 'longitude_of_projection_origin': 0.0,
 'prime_meridian_name': 'Bern',
 'projected_crs_name': 'CH1903 (Bern) / LV03C',
 'reference_ellipsoid_name': 'Bessel 1841',
 'scale_factor_at_projection_origin': 1.0,
 'semi_major_axis': 6377397.155,
 'semi_minor_axis': 6356078.962818189}