Ciani, Louis. Les Monnaies Royales Françaises De Hugues Capet à Louis XVI avec indication de leur valeur actuelle Par Louis CIANI. (Paris, Undated reprint of 1926 original). Card cover. 502 pp. A useful reference for the royal issues of France. Duplessy relied on Ciani for cross-referencing, as well as his illustrations of the coins. Used. Website shipping rates do not apply.