Acknowledgements: Allsworth Rare Books, Andrew Cahan: Bookseller - Ltd, Christie's - New York, Dominic Winter Book Auctions, George Eastman Museum, Harry Ransom Humanities Research Center at the University of Texas at Austin, J. Paul Getty Museum, Lee Gallery, Lumiere Press, Metropolitan Museum of Art, Musée d'Orsay, Museum Ludwig, National Gallery of Canada / Musée des beaux-arts du Canada, Paul Cava Fine Art, Swann Galleries - New York, Victoria and Albert Museum. |