The 50 francs Saint-Exupery is a bank note in French francs bearing the effigy of the writer and aviator Antoine de Saint-Exupery. Replacing the 50 francs Quentin de La Tour, it was created by the Bank of France March 10, 1992 and came into circulation on October 20 19 931 2.1. Its circulation ceased on December 31, 2001 when the euro banknotes came into circulation. On a personal note, I've been lucky enough to get 2 notes in order to framed them. Note The Little Prince on both sides.