• Not specified (based on Airy 1830 ellipsoid)

  EPSG:6001
  Area of use: Not specified.
  

• Not specified (based on Airy Modified 1849 ellipsoid)

  EPSG:6002
  Area of use: Not specified.
  

• Not specified (based on Australian National Spheroid)

  EPSG:6003
  Area of use: Not specified.
  

• Not specified (based on Bessel 1841 ellipsoid)

  EPSG:6004
  Area of use: Not specified.
  

• Not specified (based on Bessel Modified ellipsoid)

  EPSG:6005
  Area of use: Not specified.
  

• Not specified (based on Bessel Namibia ellipsoid)

  EPSG:6006
  Area of use: Not specified.
  

• Not specified (based on Clarke 1858 ellipsoid)

  EPSG:6007
  Area of use: Not specified.
  

• Not specified (based on Clarke 1866 ellipsoid)

  EPSG:6008
  Area of use: Not specified.
  

• Not specified (based on Clarke 1866 Michigan ellipsoid)

  EPSG:6009
  Area of use: Not specified.
  

• Not specified (based on Clarke 1880 (Benoit) ellipsoid)

  EPSG:6010
  Area of use: Not specified.
  

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