| Albert Renger-Patzsch Untitled (gears) 1928 (ca) Silver print 7 x 5 in (17.8 x 12.7 cm) Swann Galleries - New York Courtesy of Swann Galleries (Auction, Feb 7, 2008, #2135, Lot 64) LL/27103 With Renger-Patzch's hand stamp and numeric notation on verso.
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