Sigmar Polke (Oels 1941 – 2010 Cologne). Untitled. 1974 Acrylic and gold-bronze on paper. 69,7 × 99,7 cm (27 ½ × 39 ¼ in.). Signed and dated in pencil lower right: S. Polke 74. [3373] Provenance: Private Collection, Germany (acquired 1974 at Galerie Erhard Klein, Bonn, thence by descent to the present owner) We would like to thank Michael Trier, Cologne, for kindly providing additional information