sentences:  In 1850, the Swiss franc was introduced, with Swiss francs = 1 Berne Frank.Billon coins were issued in denominations of 1, 2, and 5 Rappen, and 1 Batzen, with silver coins for and 5 Batzen and 1, 2 and 4 Franken.Berne also counterstamped various French écu and 6 livres for use as 40 Batzen coins.