text: front) Bruce Nauman, Forced Perspective, 1975. Acquired in 1975; (left) Donald Judd, Brass, 1969. Acquired in 1969; (right) Robert Ryman, Napier (II), 1962. Acquired in 1995 with the support of the State of North Rhine-Westphalia and the Museumsverein Mönchengladbach. Photo: Achim Kukulies