Lifetime portrait of Anton Chekhov?
 

Dear forum users help define one's hand belongs to the job? Paper karandash.Oformlenie native dorevolyutsionnoe.22 * 30sm.Zaranie grateful for any information.

Amateur picture. Theoretically, the author must be a friend of Chekhov poet S. Petrov (Wanderer).
 But why is it then, before the revolution, did not put b at the end of the signature?
Literate as a person, spelling knew.
Probably, this is all the same poslerevolyutsonny artist drew? Perhaps S. Petrov (1911-1977)

dimi32, in my opinion. this is done with the famous photo. Now look, too.

Probably this. Turning the head, streak on her forehead.

Photo taken in May 1901 Photographer - Franz Osipovich Opitz (1838 - 1906 (?)).

I am grateful to all for information

Maybe this works by artist
 Petrov Sergey Ivanovich (1881-1936)?
Maybe someone else have a specimen signature of the artist?
But this is already neveroyatnoe.Skazano and so much.
.