❝ From this productive period came not only the cut-ups and the Dream Machine but also [Brion] Gysin’s “roller grid” prints. “Repetitive yet always featuring distinct markings,” points out University of Delaware exhibition notes, “the roller grids represented an idiosyncratic system, an irrational order, combining repetition and chance. The principle of the “rolling grid” (endless repetition with endless variation) can be seen at work in many of Gysin’s and Williams S. Burrough’s projects, including the Dream Machine.” ❞ *