| Ray K. Metzker Philadelphia [City Whispers] 1981 Gelatin silver print 7 7/8 x 11 x 7/8 ins Bonhams - New York Photographs, 28 April 2016, Lot: 52 LL/66330 The Museum of Fine Arts, Houston (and six other venues), Unknown Territory: Photography by Ray K. Metzker, 1957-83,11 November 1984-20 January 1985.
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