1839, Switzerland, Geneva (Canton). Billon 1 Centime Coin.Mint Year: 1839 Reference: KM-125. Denomination: 1 Centime Mint Place: Geneva (Free City) Material: Billon (low grade silver and bronze alloy) Diameter: 14mm Weight: 0.67gm Obverse: Illuminated initials (“ IHS”) above round arms of Geneva (Crowned Eagle / Key). Legend: POST . TENE BRAS . LUX . X Reverse: Value (I), denomination ...