Édouard MANET. L.A.S., Thursday, April 17 [1879]; 1 page in-8 (framed). "At the end of the exhibition you will send La Liseuse de Mlle Cassat to the home of Mr Antonin Proust, deputy 32 Bd Haussmann where you will receive the 300 frs agreed upon "... It is the fourth exhibition of the Impressionists, in April 1879, at 28 avenue de l'Opéra. Mary Cassatt exhibited twelve paintings there, including her Woman Reading, today at the Joslyn Museum in Omaha (Nebraska). The art critic and politician Antonin Proust (1832-1905), a friend of Manet's, was one of the first buyers of Mary Cassatt].