1873, Switzerland (Confederation). Billon 10 Rappen Coin.Mint Years: 1873 Reference: KM-6. Denomination: 10 Rappen Diameter: 19.23mm Weight: 2.37gm Material: BillonSwitzerland (die Schweiz, Suisse, Svizzera), in its full name the Swiss Confederation (Latin: Confoederatio Helvetica, hence its abbreviation CH), is a federal republic consisting of 26 cantons, with Bern as the seat of ...