Fiat Money Inflation in France by Andrew Dickson White (pg. 38)

The result outside the Convention was increased activity of the guillotine; the results inside were new measures against all who had money, and on June 22, 1793, the Convention determined that there should be a Forced Loan, secured on the confiscated lands of the emigrants and levied upon all married men with incomes of ten thousand francs and upon unmarried men with incomes of six thousand francs. But a difficulty was found. So many of the rich had lied or had concealed their wealth that only a fifth of the sum required could be raised, and therefore a law was soon passed which levied forced loans upon incomes as low as one thousand, francs,–or, say two hundred dollars of American money.