Sadow, J., and Sarro Jr, T., The Coins and Medals of the Vatican, New York, 1977, 123pp, illustrations in text; Ryan, J.C., A Handbook of Papal Coins…1268…to 1534, Washington DC, 1989, 81pp, 6 plates; together with other books (19), by Plant, Schaendlinger, Bendall, Cayòn, etc [21]. Publishers’ bindings (£30-40)