Balgarska Narodna Banka
The Bulgarian National Bank ( Bulgarian Българска народна банка ; Balgarska Narodna Banka ) is the central bank of Bulgaria , based in Sofia . It is a member of the European System of Central Banks . The central bank was founded in January 1879. The bank has a monopoly on issuing levs . The central bank building is located in Sofia on Fürst-Alexander-Battenberg- Platz and was built between 1934–1939 during the reign of King Boris of Saxe-Coburg and Gotha .