The Twenty Francs coin is a denomination of the Swiss Franc. Given that Switzerland has four official languages, the Franc has three different names: Franken in German, franc in French and Romansh, and franco in Italian.
In regular circulation, the denomination is served by a banknote. These coins are non-circulating legal tender made for collectors. They are issued in topical series, celebrating various aspects of Swiss heritage or nature.
The edge is usually inscribed with the motto DOMINUS PROVIDEBIT (The Lord will provide - a quote from the Bible, Genesis 22, 8), and thirteen stars representing the original thirteen cantons of the Swiss Federation.
This coin is the first of four releases in a series featuring Landscapes and Legends of Switzerland, and is dedicated to the so-called Devil's Bridge over Schöllenen Gorge.
Schöllenen Gorge (German: Schöllenenschlucht; Schöllenen) is a gorge formed by the upper Reuss in the Swiss canton of Uri between the towns of Göschenen to the north and Andermatt to the south. It provides access to the St Gotthard Pass. Enclosed by sheer granite walls, its road and railway require several spectacular bridges and tunnels, of which the most famous is a stone bridge known as the Teufelsbrücke ("Devil's Bridge").
In Early Modern Switzerland, a legend developed which attributed the construction of the bridge to the Devil. The name Teiffels Brucken ("Devil's Bridge", modern German: Teufelsbrücke) is first recorded in 1587.
The legend is related by Johann Jakob Scheuchzer (1716). According to Scheuchzer, he was told a local legend according to which the people of Uri recruited the Devil for the difficult task of building the bridge. The Devil requested to receive the first thing to pass the bridge in exchange for his help. To trick the Devil, who expected to receive the soul of the first man to pass the bridge, the people of Uri sent across a dog by throwing a piece of bread, and the dog was promptly torn to pieces by the Devil. Enraged at having been tricked the Devil went to fetch a large rock to smash the bridge, but, carrying the rock back to the bridge, he came across a holy man who "scolded him" (der ihn bescholten) and forced him to drop the rock, which could still be seen on the path below Göschenen. | 
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