Keywords: Pyotr P. Sokolov.jpg en Portrait of the artist Pyotr P Sokolov 1821-1899 ru Художник Пет Пет ович Соколов сын П Ф Соколова скан Stepanov Alexander Nikolaevich 1861-1911 1897 PD-old Pyotr Petrovich Sokolov 19th-century portraits in the Russian Museum |