| Heinz Hajek-Halke Sitzender Akt (Sitting Nude) 1930-1932 (taken, later print) Gelatin silver print 38.9 x 28.6 cm Lempertz - Cologne Auction 1041, November 28, 2014, Lot: 17 LL/56618 Heinz Hajek-Halke. Form aus Licht und Schatten, Göttingen 2005, ill. p. 79 (variant)
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