Lawrence Weiner, A 36” X 36” REMOVAL TO THE LATHING OR SUPPORT WALL OF PLASTER OR WALLBOARD FROM A WALL, 1968, Weiner constructing the work for When Attitudes Become Form: Works-Concepts-Processes-Situations-Information at the Kunsthalle Bern, 1969, photo by Shunk Kender, courtesy Harald Szeemann Archive, Switzerland

© Whitney Museum of American Art