Robert Rauschenberg
      
            Untitled (Elemental Sculpture)
ca. 1953
      
            Steel hinged flange, bent steel strap, bolt and stone
13 5/8 x 18 1/4 x 9 1/8 in. (34.6 x 46.4 x 23.2 cm) 
      
            San Francisco Museum of Modern Art
Purchase through a gift of Phyllis C. Wattis
RRF
              53.024