1880.
1) Cardboard, pencil. 16.5 x 30.5 cm. In the lower left corner is the inscription in Cyrillic in pencil "P. Kovalevsky 1880". The bottom edge is unevenly cut off. Minor dirty. The top two corners are glued to a modern paper passepartout. 2) Cardboard, pencil. 23 x 31 cm. The right edge is unevenly cut off. Minor dirty, "foxes" stains. Pin marks in the corners, glue traces. The upper edge of the work is glued to the modern paper passeparout.