"Luzern Frank" refers to a type of Swiss Franc currency that was used in Switzerland up until the early 21st century. Some synonyms for this coin are "Swiss Franc," "Frank," "Schweizer Franken," or simply "CHF," which is the currency code. The Swiss Franc is considered one of the most stable currencies in the world and is often used as a safe-haven currency in times of economic uncertainty. While the Luzern Frank is no longer in circulation, its legacy lives on in the Swiss Franc, which has remained a trusted currency in the global marketplace.