Franc
The Swiss franc (ISO code: CHF or 756), which appreciated significantly against the new European currency from April to September 2000, remains one of the world's strongest currencies, worth today around five-sixths of a euro. The Swiss franc is used in Switzerland and in Liechtenstein. Liechtenstein retains the ability to mint its own currency, the Liechtenstein franc, which it does from time to time for commemorative or emergency purposes.
Coat of arms of Switzerland
Alternative shapes of the heraldic shield were also in frequent use, and still remain in use in spite of the 2017 legislation. 
A frequently seen shield shape is the "Iberian" or "curved" type, specifically used to mark Swiss embassies and border crossings, and also used on the five franks coin. 
Another frequently seen variant is a Renaissance-style articulated shield, shown as being held by the national personification Helvetia on the ½, 1 and 2 franks coins.