Narodna Banka Srbija | 20 Dinara | Obverse: Portrait of Petar II Petrović Njegoš (1813-1851) with a line sketch of the Cetinje monastery | Reverse: Figure of Petar II Petrović Njegoš, Detail from the decorative miniature featured on the Slavic Octoechos (printed in Cetinje 1494), Mountain range of Komovi and Coat of Arms | Watermark: Portrait of Petar II Petrović Njegoš