John Heartfield, 1937, The Voice of Freedom in the German Night on Radio Wave 29.8, [From Die Volks-Illustrierte (April 21, 1937), no. 16, p. 245], Copper-plate photogravure, J. Paul Getty Museum, LL/8471
John Heartfield 1937 The Voice of Freedom in the German Night on Radio Wave 29.8 [From Die Volks-Illustrierte (April 21, 1937), no. 16, p. 245]
