FRANCE (Kingdom). Louis IX (1245-1270), Silver Denier Tournois, 0.9g, 17mm, obverse; + LVDOVICVS REX around large cross, reverse; TVRONVS CIVIS, castle. Duplessy-193, Roberts-2411, F
References;
Jean Duplessy, Les Monnaies Françaises Royales de Hugues Capet a Louis XVI (987-1793)
, Paris, 1988.
James N. Roberts, The Silver Coins of Medieval France (476-1610 AD)
, South Salem 1996.