Currency of Uruguay issued by Banco Nacional of Buenos Aires for Provincia Oriental ("Eastern Province", i.e., Uruguay). All parties to the conflict used the Spanish dollar (Spanish "peso", Portuguese " patacão"), which circulated with a value of 8 Spanish reales or 960 Brazilian reis. Circulation consisted of coins from mints in Mexico, Potosí, Brazil, and Buenos Aires. During the turbulent period of conflict preceding independence, a considerable amount of poor-quality copper coin from both Buenos Aires and Brazil came into circulation. Peso (Patacón) = 8 Reales = 800 Centésimos de real (centavos) Onza de oro = 16 Pesos In 1828, Uruguay's currency was
Gold standard to Congress the value of a decimal system. This system would also apply to monies in the United States. The question was what type of standard: gold, silver or both. The United States adopted a silver standard based on the Spanish milled dollar in 1785. From 1860 to 1871 various attempts to resurrect bi-metallic standards were made, including one based on the gold and silver franc; however, with the rapid influx of silver from new deposits, the expectation of scarce silver ended. The interaction between central banking and currency basis formed the primary source of monetary instability during this period.