Estonian kroon until the Soviet invasion in 1940 and Estonia's subsequent incorporation into the Soviet Union when it was replaced by the Soviet ruble. After Estonia regained its independence, the kroon was reintroduced in 1992. The kroon became the currency of Estonia on 1 September 1928 after having been a unit of account since 1924. It replaced the mark at a rate of 100 mark = 1 kroon. The kroon was subdivided into 100 sent. In 1924, the kroon was pegged to the Swedish krona at par, with a gold standard of 2480 kroon = 1 kilogram of pure gold. The standard
De Kroon, Arnhem the use of the sails in 1962; they were removed in 1964. The mill was bought for ƒ1 by the Stichting Vrienden van Gelderse Molen in 1974. Restoration was completed in 1976. The mill was restored again in 1997, but a fire occurred on 4 February 1998. It was caused by an electrical short-circuit in a refrigerator. Repairs were completed by mid-1999. In 2011, the mill was sold to the Stichting Volkshuisvesting Arnhem. "De Kroon" is listed as a Rijksmonument, № 8345. "De Kroon" is what the Dutch describe as a "Ronde stellingmolen". It is a five storey tower mill