Sigmar PolkeOhne Titel (Dr. Feelgood)1975 Copyright ©The Estate of Sigmar Polke, Cologne / VG Bild-Kunst, Bonn 2021; Photo Achim Kukulies, Düsseldorf Gelatin silver print, unique 84 x 139 cm / 33 x 54 3/4 in. 107,8 x 162,2 x 5,5 cm / 42 1/2 x 63 3/4 x 2 in. (framed) Signed and dated verso: Sigmar Polke 1975 Inquire