1791, Naples & Sicily, Ferdinand IV & Maria Carolina. Silver Piastra Coin. Mint Year: 1791 Mint Marks: P. / A.P.M.Denomination: 120 Grana (Piastra)Reference: Davenport 1408, KM-C68.Material: Silver (.833)Diameter: 40mm Weight: 27gmObverse: Conjoined busts Ferdinand I of Sicily and Maria Carolina of Austria right.Legend: FERDINANVS IV. ET M. CAROLINA VNDIQ . FELICESReverse: A band with zodiac ...