1856, Mexico (2nd Republic). Silver 1 Reales Coin. Mint Year: 1856 Denomination: 1 Real Mint Mark: Cn (Culiacan) Reference: 1856-C/CE, KM-372.1Material: Silver (.903) Diameter: 21mm Weight: 3.34gm Obverse: Phrygian cap with “libertad” inscription within light rays. Legend: * I R . C . 1856 . C .E . 10 Ds . 20 Gs . Reverse: Eagle with a snake in its beak, standing on a cactus plant, ...