Postage stamps and postal history of Mexico The regency had previously changed the official currency under which one peso equaled 8 reales to a decimal system in which one peso equaled 100 centavos. In making the conversion postal rates were rounded up, for example, the rate of one real being equal to 12.5 centavos was rounded up to 13 centavos. The stamps, as a result, were issued in values of 7c, 13c, 25c, and 50c. These stamps were issued with the year and invoice number and with or without the district name, but some issued in exchange for Eagle stamps were issued only with the Mexico City
Currency of Colombia to establish Banco Nacional, which began operations in January 1881. A decree of 24 March 1885 authorized coins of nickel and 0.500 silver, and authorized Banco Nacional to issue notes for 10 & 20 centavos. The cost of the civil war of 1885 was covered by paper money, circulation increasing by 89%. Banco Nacional was unable to cover its notes in gold coin, but the Government compromised on suspension by paying notes in silver with the funds received from negotiating the Panama Canal. "El Banco Nacional de los Estados Unidos de Colombia" was responsible for the national note issue 1880–1885.