Sigmar PolkeUntitled (Quetta, Pakistan)1974 Copyright © The Estate of Sigmar Polke; VG Bild-Kunst, Bonn 2020; Photo Achim Kukulies, Düsseldorf Gelatin silver print 29,7 × 20,9 cm Framed 61,4 × 52,5 × 4 cm Unique