Digital Images Archive
One-inch (1:63,360) second edition map of Ireland, sheet 129, with hills, without contours
9. Publication of the second edition map of Ireland with hills was delayed until after the addition of contours to the outline plate. A few second edition hills sheets have been recorded without contours, perhaps made for some internal purpose of the Ordnance Survey. Probably none of them were sold to the public.
From a copy in the Library of Congress, Washington D.C.