Double-headed eagle (Почтовая марка)

Source: Wiki Commons                                        

Russia or Finland.  Used on stamps of Russia before 1917.  Often the eagle is embossed.  Stamps intended for use in Russia will denominated in kopeck (копейка) and ruble (рубль).  Почтовая марка ("postage stamp") will generally appear at the top of the design.  No country name appears on the stamps.