Dominican Party. The coins were all of identical weights, diameter, and composition to U.S. coins of the era. Two denominations appeared on these coins, one in "centavos" or "pesos" and another in "gramos" to represent a pre-decimal silver weight system formerly used in much of the region. A two coin set of 1955 commemorative coins were minted for the 25th anniversary of Rafael Trujillo's reign. These consisted of a gold 30 peso (33,000 minted) and a silver one peso, both showing him in profile. 50,000 of the silver one peso coins were produced in issued into circulation, but after Trujillo was assassinated in 1961 an estimated 32,550 were recalled and melted down. In 1963 the silver content in the 10, 25, 50, and 1 peso coins was reduced from 0.900 pure to 0.650 pure. The 1963 issue also distinctively commemorated the centennial of the republic and the crowned Indian head was added to the 1 centavo, replacing the palm. After 1963 the Peso Oro became a fiat currency and base metals replaced silver in the higher denominations, with the 10, and 25 centavos and pesos reintroduced in copper-nickel in 1967. 1 peso coins were struck as only commemorative in small numbers. In 1976 a new coin series was introduced featuring Juan Pablo Duarte, and in 1983 another series was released featuring various other figures important to Dominican history, including the Mirabal sisters and formally dropping the outdated "gramos" denomination reference. In 1989, the content of the coins was changed from copper-nickel to nickel-plated steel. In 1991, eleven sided circulating non commemorative 1 peso coins were reintroduced in copper-zinc, followed by bimetal 5 pesos in 1997. For the latter coin the first year of issue was a circulating commemorative for the 50th anniversary of the national bank. Both a bimetal 10 pesos and a copper-nickel 25 pesos were introduced in 2005. Due to inflation, any coins below 1 peso are now rarely found. RECENT COINS Banknotes First peso, 1848–1905 Paper money made up the bulk of circulating currency for the first peso. Provisional issues of 40 and 80 pesos were produced in 1848, followed by regular government notes for 1, 2 and 5 pesos in 1849, and 10 and 50 peso notes in 1858. The Comisión de Hacienda issued 50 and 200 pesos in 1865, whilst the Junta de Crédito introduced notes for 10 and 20 centavos that year, followed by