in use until coins were introduced in January 2008. Banknotes of 1, 5, and 20 som of the first series were gradually withdrawn from circulation and replaced with banknotes of the second series starting in 1994. Second series (1994–1995) The second series of banknotes followed in 1994-1995 when "the banknotes of the stabilization period" were issued. These banknotes had a better counterfeit protection than the banknotes of the first series. Third series (1997–2005) Starting in 1997, a new series of banknotes was introduced with similar themes, but enhanced design, compared to the previous series. In January 2008 coins of 1 and 5 som and in December 2009 coins of 10 som were introduced. As a result, production of banknotes of these values ceased. The banknotes were however not removed from circulation, but are instead being phased out. In January 2008 the Kyrgyz National Bank estimated that within 2 years the 1 and 5 som banknotes would have almost completely disappeared from circulation. Fourth series (2009–2016) In 2009 the National Bank of the Kyrgyz Republic issued a 5,000 som note. Later new editions for 20, 50, and 100 som denominations followed. Among other things, these notes have enhanced security features compared to the previous series. Commemorative banknotes In October 2014 banknotes commemorating the 150th birthdate of Toktogul Satylganov and the 100th birthdate of Alykul Osmonov were issued for sale to collectors. Only 3,000 of each were printed. A commemorative 2,000 som banknote in honor of the 25th anniversary of independence and the introduction of the som was issued in November 2017. Exchange rates See also Economy of Kyrgyzstan References External links Biographies of the figures depicted on Kyrgyz bank notes from the Spektator magazine Economy of Kyrgyzstan Currencies introduced in 1993