Estonian kroon 4 days after the founding of the Estonian SSR, the last Estonian pre-WW II coin, the new 1 sent (date 1939), was issued. In 1927, before the kroon was officially introduced, 100 marka banknotes circulated with an "ÜKS KROON" (1 kroon) overprint. Eesti Pank introduced 10 krooni notes in 1928, followed by 5 and 50 krooni in 1929, 20 krooni in 1932 and 100 krooni in 1935. The kroon was reintroduced as Estonia's currency on 20 June 1992, replacing the Soviet ruble at a rate of 1 kroon = 10 rubles. (Each person was able to change a maximum of
European Unit of Account Different units of account had previously been used for different purposes, including the budget, the European Coal and Steel Community, and the Common Agriculture Policy following the abandonment of the gold parity unit of account in the early 1970s in the wake of the collapse of the Bretton Woods system. Various European currency baskets were used as units of account in international bond markets. Some of these were defined in ISO 4217. European Unit of Account The European Unit of Account (EUA) was a unit of account used in the European Communities from 1975 to 1979, when it was replaced