Stamps of Ottoman Empire (Turkey)

The postal history of Turkey can be divided into two part.  Turkey before  and after 1923. Before 1923, the modern day Turkey  was part of the greater Ottoman Empire, which was tspread from Yugoslavia, Greece, Bulgaria and Romania in the west, to Yemen, Saudi Arabia and the borders of Persia in the east. 

The Ottoman Empire installed its postal organization in 1840 and issued its first adhesive on 1^st January 1863.  The horizontal pair of two stamps shown is one of two recorded unused items.

The Duloz Issue 1865

 

The above stamps issued in 1890 were subsequently cancelled

Selimiye Mosque, Adrianople, 1913

Refer to Wikipedia for more details on Ottoman Empire Postage
All stamps courtesy Wikipedia