• Mauritania 1999

  EPSG:4681
  Area of use: Mauritania - onshore and offshore.
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• Gandajika

  EPSG:4685
  Area of use: The Democratic Republic of the Congo (Zaire) - onshore and offshore.
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• Viti Levu 1916

  EPSG:4731
  Area of use: Fiji - Viti Levu island.
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• Padang (Jakarta)

  EPSG:4808
  Area of use: Indonesia - Sumatra.
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• Nord Sahara 1959 (Paris)

  EPSG:4819
  Area of use: Algeria; Morocco; Tunisia.
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• NDG (Paris)

  EPSG:4902
  Area of use: France - Alsace.
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• Unknown datum based upon the Airy 1830 ellipsoid

  EPSG:4001
  Area of use: Not specified.
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• Unknown datum based upon the Airy Modified 1849 ellipsoid

  EPSG:4002
  Area of use: Not specified.
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• Unknown datum based upon the Australian National Spheroid

  EPSG:4003
  Area of use: Not specified.
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• Unknown datum based upon the Bessel 1841 ellipsoid

  EPSG:4004
  Area of use: Not specified.
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