Robert Rauschenberg, Retroactive I, 1963, Oil and silkscreen ink on canvas, 84 x 60 in., Photo by Mary Ellen via Flickr, Creative Commons Attribution 2.0 License.
Robert Rauschenberg, Retroactive I, 1963, Oil and silkscreen ink on canvas, 84 x 60 in., Photo by Mary Ellen via Flickr, Creative Commons Attribution 2.0 License.