A GROUP OF 3 RUSSIAN AVANT-GARDE DRAWINGS, EARLY 20TH CENTURY comprising: a) The Dancing Couple, gouache, India ink and pencil on paper, 28.5 x 22 cm (11 1/4 x 8 5/8 in.) b) The Skating Couple, gouache, India ink and pencil on paper, 27.8 x 21.3 cm (11 x 8 3/8 in.) c) Mother and Two Children, gouache, India ink and pencil on paper, 28 x 22 cm (11 x8 5/8 in.)