The perper (Serbian Cyrillic: Перпер; plural Перпери) was the currency of Montenegro between 1906 and 1918. Named after the Byzantine hyperpyron, it was divided into 100 para.
At the end of the 20th century, Montenegro contemplated issuing the perper again. However, it decided to unofficially adopt the Deutsche mark instead, and later followed the change to the euro.
The Principality of Montenegro (Serbian: Књажевина Црна Горa, romanized: Knjaževina Crna Gora) was a principality in Southeastern Europe that existed from 13 March 1852 to 28 August 1910. It was then proclaimed a kingdom by Nikola I, who then became King of Montenegro.
The capital was Cetinje and the Montenegrin perper was used as the state currency from 1906. The territory corresponded to the central area of modern-day Montenegro. It officially was a constitutional monarchy.