Perhaps a portrait of Boris Pasternak

[раскатов]

Figure: green cartridge paper, charcoal, chalk. 17 x 30.
Artist signed and dated 10.01.1916 g.
Where at the time was Boris Pasternak, and he it. Then, who drew, mystery. On the right picture from the Internet.
One source:
Fearing a possible recruitment into the army, the winter of 1916 goda Pasternak spent in the Urals, near the town of Alexander the Perm province, accepting the invitation to work in the office of Governor Vsevolodo-Vilvenskimi chemical plants, Boris Zbarsky. There is a widespread view that the prototype of the city Yuryatina of "Doctor Zhivago" is the capital of Perm, located near the village of Vsevolodova-Vilva.