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
Marc Kroon on a new contract, and ended up being a free agent. Kroon was later signed by the Yomiuri Giants along with two other major non-Japanese free agents: former Tokyo Yakult Swallows standouts Seth Greisinger, and Alex Ramirez. In 2008, Kroon led the Central League in saves with 41. He also broke his own record of pitching to 162 km/h (101 mph). Kroon signed a minor league contract with an invitation for spring training with the San Francisco Giants in 2011. Kroon was reassigned to triple-A Fresno Grizzlies at the end of spring training. Kroon was featured in the Showtime television