heinz hajek-halkeblack/white ca. 1930seva chançon, 1928-32akt im spiegel, ca. 1930superimposed face, ca. 1930suntitled (woman sleeping), 1928-32sexualnot der gefangenen, 1926le mauvais épilogue, 1932untitled nude, ca. 1927heinz hajek-halke painting willi rugeder gassenhauer (la rengaine), 1930bonne année, 1927