William Bramley/The Gods of Eden/23/231/0

From Organic Design wiki

happened because the banknotes could be redeemed for coins in which the people had faith. After the Bank of France became nationalized, however, it issued a severe overabundance of notes, not just a careful and gradual increase. People quickly realized that there were far more paper notes in circulation than there were coins to back them up. The result was a shattering of popular confidence in the notes and a consequent upheaval of the French economy.