BY THE IMPERIAL PORCELAIN FACTORY, ST PETERSBURG, AND THE STATE PORCELAIN FACTORY, PETROGRAD, 1919

For an almost identical plate, dated 1921, see N. Lobanov-Rostovsky, Revolutionary Ceramics, New York, 1990, p. 131, no. 160. For another similar plate, see T. Kudravtseva, Circling the Square, London, 2004, p. 108, no. 67. A comparable plate was sold Christie's, London, 3 June 2013, lot 330.