On 15 March 2011, the National Bank of the Republic of Belarus introduced new 500-ruble (US$0.15) banknotes, as well as 1,000-, 10,000-, and 20,000-ruble notes dated 2000. The modified notes have the same images, sizes, and colors as preceding issues also dated 2000, but feature a new 2-mm wide windowed security thread.
Courtesy of Vitali Khaletski, Elena Zoubarik, and I.B.