Vintage Swiss 10 Rappen Coin, set in 14 Karat Yellow Gold Bezel mounting. Marked: "Confoederatio Helvetica 1964" on the front and "10" with a "B" Hallmark on the backside. Rappen, a monetary unit in the German-speaking cantons of Switzerland and in Liechtenstein, equal to one-hundredth of the Swiss franc. Swiss 10 rappen coins are minted in copper-nickel. Copper-nickel coins are lighter in colour, but the pattern is the same.