The strong market for Jean-Baptiste-Camille Corot's (French painter, 1796-1875) works and his relatively easy-to-imitate late painting style resulted in a huge production of Corot forgeries between 1870 and 1939.
René Huyghe (French writer on the history, psychology and philosophy of art, curator at the Louvre's department of paintings (from 1930), a professor at the Collège de France director of the Musée Jacquemart-André, a member of the Académie Française, 1906-1997) famously quipped that "Corot painted three thousand canvases, ten thousand of which have been sold in America".