Postage stamps and postal history of Costa Rica change in currency from "Reales" to the new Pesos and "Centavos", the issue of 1863 was surcharged with new values for postal use: 1 Centavos, 2 Centavos, 5 Centavos (all over the Medio Real stamp), 10 Centavos (over Dos Reales) and 20 Centavos (over Cuatro Reales). The 5, 10 and 20 Centavos were also surcharged "U.P.U." Costa Rican stamps were issued overprinted "Guanacaste" in 1885-89 following war with Nicaragua over the sovereignty of Guanacaste. The first issue in the new "Colón" currency was dated 1900 and put into circulation in 1901. It consists of ten stamps with values ranging from
Euro gold and silver commemorative coins (San Marino) it continues to issue a gold commemorative coin in its former currency the scudo released with a value of 2 scudo. Since there is a fixed exchange rate between the scudo and the euro and since the euro is San Marino's official currency the 2 scudo coins will be included in this article. Euro gold and silver commemorative coins (San Marino) This article covers euro gold and silver commemorative coins issued by Azienda Autonoma Di Stato Filatelica E Numismatica. It also covers rare cases of collectors coins (coins not planned for normal circulation) minted using other precious metals. It does