Drawing rooms of Russian princelings from before it all changed. Watercolors by various artists. Collection of the State Historical Museum in Moscow. One of the Kremlin Museums.

Living room in the estate of princes Shakhovskikh (White Kolp, Moscow province). 1850s
Drawing room, estate of princes Shakhovskikh. White Kolp, Moscow province. 1850’s. Artist not known. Collection of the State Historical Museum, Moscow. In the public domain in the United States because the artist died over 70 years ago. via https://www.culture.ru/events/128896/vystavka-interer-v-russkoi-grafike-xix-nachala-xx-veka#materials-4
Cabinet-drawing room of the Uvarovyh estate, Porechye, Moscow province. 1890.
Cabinet-drawing room of the Uvarovyh estate, Porechye, Moscow province. 1890. E. A. Uvarova, watercolorist. Collection of the State Historical Museum, Moscow. In the public domain in the United States because the artist died over 70 years ago. via https://www.culture.ru/events/128896/vystavka-interer-v-russkoi-grafike-xix-nachala-xx-veka#materials-8
Study of the Shakhovsky prince's estate. Undated.
Study of the Shakhovsky prince’s estate. Undated. Karelian amber-colored birch with white upholstery and a complex ceiling. Undated. Artist not known. Collection of the State Historical Museum, Moscow. In the public domain in the United States because the artist died over 70 years ago. via http://www.berlogos.ru/article/interer-v-russkoj-grafike-xix-nachala-xx-vek/