Estonian kroon - new Estonian money. On May 18, 1989, the Supreme Soviet of the Estonian SSR adopted the law On the Fundamentals of Self-Sufficiency of the Estonian SSR, which officially announced the exchange rate for the Estonian monetary unit. On December 7, 1989, the Council of Ministers of the Estonian SSR announced an open competition for the design of new EEK banknotes and coins. The second Estonian kroon (the first Estonian kroon was in use from 1928 to 1940) was put into circulation on June 20, 1992.