Bulgaria – 20 Leva Banknote (1991)

A 1991 20 Leva banknote issued by the Bulgarian National Bank. The obverse features a detailed portrait of Desislava, a 13th-century Bulgarian noblewoman, adorned in traditional medieval attire. The reverse depicts the Boyana Church, a UNESCO World Heritage site known for its medieval frescoes. The design incorporates intricate patterns, pastel tones, and security features typical of early 1990s Bulgarian currency.