| Alphonse De Launay Gustave Le Gray 1854 Salted paper print, from paper negative 8 3/4 x 6 1/2 ins (22.1 x 16.5 cm) Metropolitan Museum of Art Purchase, Daniel Blau Gift and 2007 Benefit Fund, 2008 (2008.256) LL/44718 Published in Sylvie Aubenas & Paul-Louis Roubert Primitifs de la photographie, le calotype en France 1843-1860, (Gallimard BNF, 2010), p.55.
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