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
History of Chinese currency further reform was instituted in August 1948 in response to hyperinflation. The Gold Yuan Certificate replaced the fabi at the rate of 1 gold yuan = 3 million yuan fabi = US$0.25. The gold yuan was nominally set at 0.22217 g of gold. However, the currency was never actually backed by gold and hyperinflation continued. Finally, in 1949, the Kuomintang again announced a reform with the introduction of the Silver Yuan Certificate, returning China to the silver standard. The silver yuan would be exchanged at 1 silver yuan = 100 million gold yuan, and was backed by silver dollars minted