Acknowledgements: Alan Klotz Gallery, American Art Museum - Smithsonian Institution, Amsterdams Historisch Museum, Andrew Smith Gallery, Antiq-Photo, Bachmann Eckenstein Art & Antiques, Bibliothèque Nationale de France - Département des Estampes et de la Photographie, British Library, Charles Isaacs Photographs - Inc, Charles Nes Photography LLC New York - Paris, Christie's - New York, Etherton Gallery, Galerie Johannes Faber, George Eastman Museum, Harry Ransom Humanities Research Center at the University of Texas at Austin, Historical Society of Pennsylvania, J. Paul Getty Museum, KaufmaNelson Vintage Photographs, Metropolitan Museum of Art, Musée d'Orsay, National Galleries of Scotland, National Gallery of Canada / Musée des beaux-arts du Canada, Piasa, Private collection of Rob Oechsle, Private collection of Thomas Weynants, St. Andrews University Library - Special Collections / The Photographic Collection, State Library of Victoria, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, Swann Galleries - New York, Victoria and Albert Museum. |