Dowle, A., and Finn, P., The Guide Book to the Coinage of Ireland from 995 to the present day, London, 1969, 127pp, illustrations in text (Manville 1191); O’Sullivan, W., The Earliest Irish Coinage, Dublin, 1969, 47pp, 4 plates (Manville 1200) [2]. Very fine and clean £30-40