Acknowledgements: Charles Schwartz Ltd, Collection of Michael G. Jacob, Google Books, Interencheres - La Gallerie de Chartes, Jefferson Stereoptics, Jeffrey Kraus Antique Photographics, National Gallery of Canada - The Origins of Photography: The Matthew R. Isenburg and Enhanced Isenburg Collections 1840-1880, Private collection of Jack and Beverly Wilgus, Private collection of Laddy Kite, Private collection of Mark Jacobs, Private collection of Rob Oechsle, Stereographica - Antique Photographica, Stereoviews: Stereoviews and Fine 19th & 20th Century Antique Photographs, The Courtauld Institute of Art, Yale University - Beinecke Rare Book and Manuscript Library. |