The Ten 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. Initially when federal Swiss coinage was introduced in 1850, all "francs" (including the half franc) were full-bodied silver, while the centimes were either billon (low-grade silver) or base metal.
The normal circulating 5 FR denomination was supplemented by circulating commemorative one-year type 5 Franc coins in silver and copper-nickel.
In 1999, Swissimint changed the concept and started striking non-circulating commemoratives for collectors only, which were bimetallic 5 Francs at first. After only six coins were issued in the first five years, this format was discontinued. Further non-circulating bimetallic coins are now denominated as 10 Francs, such as those listed below.
The 10 Francs are bimetallic and have the same dimensions as the bimetallic 5 Francs, but their colours are reversed: with an Aluminium Bronze outer ring (92% copper, 6% Aluminium, 2% Nickel) and a copper-nickel inner circle (75% copper, 25% nickel). They are issued in topical series, celebrating various aspects of Swiss heritage or nature.
The 2005 Ten Francs collector coin shows the mount of Jungfrau. It is part of a series about Swiss mountains (German: Schweizer Berge; French: Montagnes suisses).
The obverse of the coin is common with the other commemorative 10 Francs and is designed by Roland Hirter; the reverse is designed by Stephan Bundi.
The Jungfrau, at 4,158 meters is one of the main summits of the Bernese Alps, located between the northern canton of Bern and the southern canton of Valais, halfway between Interlaken and Fiesch.
Bimetallic 10 Franc coins are legal tender but are issued in small quantities for collectors only and do not circulate. | 
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