| John K. Hillers Hillers in the field with his photographic equipment, Aquarius Plateau, Utah Territory [ U.S. Geological Powell Survey] 1872 (ca) Stereoview, oversized Swann Galleries - New York Courtesy of Swann Galleries (Auction, "Icons & Images: Fine & Vernacular Photographs", Oct 13-14, 2015, #2393, Lot 35) LL/61507
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