In 1955, the Belgian Franc (BEF) traded at approximately:
The franc was part of the Bretton Woods fixed-exchange system. Belgium later joined the European Monetary System (1979) and adopted the euro (1999/2002), demonetizing the franc. Today, 1955 franc coins/notes have only numismatic value—typically a few euros for common circulated pieces, more for uncirculated or rare dates.