• Sierra Leone 1968

  EPSG:4175 with transformation: 1614
  Area of use: Sierra Leone - onshore. (accuracy: 26.0)
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• Sierra Leone 1960

  ESRI:104103
  Area of use: Sierra Leone
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• Sierra Leone 1924

  EPSG:4174
  Area of use: Sierra Leone - Freetown Peninsula.
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• WGS 84 - WGS84 - World Geodetic System 1984, used in GPS

  EPSG:4326
  Area of use: World
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