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
Marco Kroon at the 108th Commando Company. Here he had several management positions and was dispatched once again to Iraq in 2004 for mission Stabilisation Force Iraq and three times to Afghanistan (2005, 2006 en 2007). After that Kroon became a staff officer at the intelligence centre of the special forces, training other commandos, testing equipment and tactical procedures. On 12 July 2012, Kroon received a new command as company commander of the Charley Company of the 17th Mechanized Infantry Battalion ‘Prinses Irene’ Fusilier Guards Regiment based in Oirschot. On 4 November 2013, Kroon returned to the Korps Commandotroepen ("Corps of Commando