Wolf Vostell, "Das steinerne Herz" unique assemblage, fragment of the Berlin Wall reworked with red paint and lead, in front of enlarged, partly overpainted photograph with the Berlin Wall surrounded by crowds of people in front of the Brandenburg Gate, signed and dated "Vostell (19)90" in the right area, on the reverse brand stamp "Vostell", signed in brush "W. Vostell", titled "Das steinerne Herz", inscribed ""Coeur de Pierre" 1990", and Sotheby's auction label, minor scratching to frame, dimensions approx. 107 x 79.5 x 22 cm. Artist info: German painter, sculptor and Painter, sculptor and happening artist (1932 Leverkusen - 1998 Berlin), 1939 resettlement of the family to the Sudetenland, 1945 return to Leverkusen, 1952 adoption of his mother's maiden name (Vostell), from 1953 apprenticeship as a lithographer, 1955-56 attendance at the École nationale supérieure des beaux-arts in Paris, from 1957 studies at the Kunstakademie Düsseldorf, 1958 realisation of the first Happening in Europe, co-founder of the Fluxus movement, 1959 marriage to Mercedes Guardado Olivenza, moved to Cologne and founded the Vostell Archive, 1969 created his first car-concrete sculpture, 1970 moved to Berlin, 1976 opened the "Museo Vostell Malpartida" in western Spain, source: Wikipedia.