65. Spatial force construction, by Liubov Popova. 1921. Oil and marble dust on plywood, 71 by 63.9 cm. (State Museum of Contemporary Art, Thessaloniki; exh. Royal Academy of Arts, London).
Attributed works:
67. Gosprom building, Karkhov, detail with covered skywalk, by Richard Pare. 1999. Photograph, 121.9 by 120.1 cm. (Courtesy of the photographer; exh. Royal Academy of Arts, London).
Western art unattributed:
66. MoGES under construction, by an unknown photographer. c.1924? Photograph, 22.8 by 16.4 cm. (Shchusev State Museum of Architecture, Moscow; exh. Royal Academy of Arts, London).