This is a fine example of Adam and Charles Black's 1851 map of Switzerland. The map covers the entirety of Switzerland divided into its constituent Cantons from Vaud to Grisons. Parts of adjacent France, Germany, and Italy are also shown. After the ratification of a federal constitution in 1848, Switzerland underwent a rapid social and economic development. The cantonal currencies were replaced by a single currency (the Swiss Franc) and many of the cantons subsequently established representative governments and instituted freedom of the press and trade. Throughout, the map identifies various cities, towns, rivers, roadways, mountains and an assortment of additional topographical details with relief rendered by hachure. This map was engraved by Sidney Hall and issued as plate no. in xVII for the 1851 edition of Black's General Atlas of the World.