| Boris Ignatovich Construction site 1929 (taken) 1958 (print, before) Gelatin silver print 27.3 x 39.8 cm Lempertz - Cologne Auction 1041, November 28, 2014, Lot: 32 LL/56630 Alexander Lavrentiev et al. (ed.), Boris V. Ignatovich. Fotografii 1927 - 1963, exhib.cat. State Pushkin Museum of Fine Arts, Moscow et al., Moscow 2002, plate 9
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