| Wilson A. Bentley Snowcrystals 1903-1910 (ca) Gold-chloride toned photomicrographs from glass plate negative 3 x 4 in (7.6 x 10.2 cm) Swann Galleries - New York Courtesy of Swann Galleries (Auction, Oct 22, 2009, Photographs & Photographic Literature, Sale 2191 Lot 64) LL/33432
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