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
Currency of Colombia fine, weighing 25.806 g. Granadino = 10 Reales = 100 Centavos The monetary law of 27 April 1847 adopted the decimal system and authorized silver coins of France, Belgium, and Sardinia to circulate at two reales per franc (the rate at which tax offices would receive them). It also provided for a silver coin of 10 reales, the "granadino", and equivalent to the French écu (5 francs). Minting of .666 fine silver finally ceased in 1847, save for the cuartillo (1/4 real) authorized on 30 March 1849. Moreover, Mosquera's efforts to withdraw the macuquina succeeded, and by 1 January 1849