notes from 1890 to 1914. It is currently a state-owned bank. Notes were issued in denominations of 1, 2, 5, 10, 20, and 100 pesos as well as 5, 10, 20, 50 and 100 colones. The Banco Comercial de Costa Rica issued notes between 1906 and 1914 in denominations of 5, 10, 20, 50 and 100 colones. The Banco Mercantil de Costa Rica issued notes between 1910 and 1916, also in denominations of 5, 10, 20, 50 and 100 colones. Government issues, 1897–1917 The government issued gold certificates in 1897 for 5, 10, 25, 50 and 100 colones. Between 1902 and 1917, it issued silver certificates for 50 centimos, 1, 2, 50 and 100 colones. Banco Internacional, 1914–1936 In 1914, the Banco Internacional de Costa Rica introduced notes in denominations of 5, 10, 20, 50 and 100 colones, to which 25 and 50 centimos, 1 and 2 colones were added in 1918. Although 25 centimos were not issued after 1919, the other denominations continued to be issued until 1936. After 1917, the Banco Internacional's notes were the only issued for circulation. Banco Nacional, 1937–1949 In 1937, the Banco Nacional de Costa Rica took over paper money issuing and issued notes for 1, 2, 5, 10, 20, 50 and 100 colones until 1949. Many of the early notes were provisional issues overprinted on notes of the Banco Internacional, including the 1 colón notes which were briefly issued. Banco Central, 1950– The Banco Central de Costa Rica began issuing paper money in 1950, with notes for 5, 10, 20, 50 and 100 colones. The first notes were provisional issues produced from Banco Nacional notes (unsigned and undated). The Central Bank printed on them the corresponding signatures and dates, and the legend "BANCO CENTRAL DE COSTA RICA" over "BANCO NACIONAL DE COSTA RICA". Regular issues of notes began in 1951, but a second provisional issue of 2 colones notes was made in 1967. 1,000 colones notes were added in 1958, followed by 500 colones in 1973, 5,000 colones in 1992, 2,000 and 10,000 colones in 1997, and 20000 and 50000 colones in 2011. Whenever a banknote of a specific denomination is changed (design, security features, colour, etc.), a new series is released. Prior to the most recent series, every banknote issued by this bank measures approximately 6.7 cm x 15.6 cm. Every note also has the serial and series numbers printed in red