| William Henry Jackson The Royal Gorge. Grand Canyon of the Arkansas 1881-1896 Albumen print, hand-coloured, mammoth plate 21 1/4 x 16 in (54 x 40.6 cm) Swann Galleries - New York Courtesy of Swann Galleries (Auction, Dec 7, 2006, #2097, Lot 350) LL/15986 Jackson's inventory number, title and credit in the negative.
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