
Zinaida Serebriakova, Making Her Toilet, 1909. Oil on canvas pasted on cardboard. The Tretyakov Gallery

Boris Kustodiev, Portrait of Yulia Kustodieva, the Artist’s Wife, 1903. Oil on canvas. The Russian Museum

Mikhail Vrubel, Portrait of the Artist’s Son in a Pram, 1902. Water-colours, whiting and lead pencil on paper pasted on cardboard. The Russian Museum

Sergei Maliutin, Portrait of Vera Maliutina, the Artist’s Daughter, 1909. Pastel on cardboard. The Russian Museum
Source: Russian Portrait of the late 19th-early 20th centuries, I. Pruzhan, V. Kniazeva, Izobrazitelnoye Iskusstvo Publishers, Moscow, 1980