• OSGB36

  EPSG:4277 with transformation: 7710
  Area of use: United Kingdom (UK) (accuracy: 1.0)
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• OS(SN)80

  EPSG:4279
  Area of use: Ireland
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• OSGB70

  EPSG:4278
  Area of use: United Kingdom (UK)
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• ETRS89

  EPSG:4258
  Area of use: Europe
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