File:Valikhanov.jpg

Chokan Valikhanov (left) and Fyodor Dostoyevsky (right). A photograph from 1858.

Source: http://www.pushkinskijdom.ru/DesktopModules/SimpleGallery/SlideShowPopup.aspx?PortalID=0&ItemID=240&Border=White&sb=Name&sd=ASC