Unknown photographer. Student model for an exercise in "Constructing a Cubical Form Based on Combination of Mass and Space", Vkhutemas, Moscow, Soviet Union, 1920-1926. Gelatin silver print. Canadian Centre for Architecture, Montréal; Gift of Howard Schickler and David Lafaille.
Second course at VKhUTEMAS. Work of student I. Lamtsov, studio of Nikolai Ladovskii (1921). (via http://thecharnelhouse.org/2014/03/06/the-decantation-chamber-of-soviet-modernism-vkhutemas-projects-from-the-1920s/)