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) 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 not cover either the San Marino €2 commemorative coins or the Sammarinese scudo commemorative coins. For euro gold and silver commemorative coins of other countries see Euro gold and silver commemorative coins. San Marino has adopted the Euro since 2002 as its currency, However, in a means to maintain its own cultural identity