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The Ordnance Survey of Ireland came into existence after the partition of Ireland. An Irish Government agency, it does for Ireland what the Ordnance Survey does for Great Britain.
List of Maps
A list of the changes to Ordnance Survey of Ireland mapping from 1921 to present.
|Year From||Year To||Map Name||Scale||Notes|
|19??||present||OSi Discovery||1:50000||Shared with OSNI|