[Various editions]. Topographic map series of Ireland showing roads in Republic of Ireland (as classified by Local Government and Public Health (Roads Department)), roads in Northern Ireland (as classified by Ministry of Home Affairs), railways, canals, inter-state and county boundaries, Customs examination stations, Customs boundary posts, and youth hostels. Relief shown by hypsometric tints and spot heights. Depths shown by bathymetric tints and isolines.; Each sheet is named and numbered individually.; "Based on the Ordnance Survey map of Northern Ireland with the consent of the Controller of H.M. Stationary Office."--Sheet 1.; "Based on the Ordnance Survey by permission of the Minister for Finance of the Republic of Ireland."--Sheets 2-...