In numismatics it is a name for coins with different characteristics according to their origin, since it was coined in Argentina, Ecuador, Colombia, Macau (or as the Portuguese called their paw) , Spain (10o peseta), but it was never an official name. The nearest thing, already in this century, was a bond created by the government of the province of Buenos Aires (Argentina) in 2001 that served him to pay wages and other obligations in the face of lack of financing after an economic default. The name was taken from the National Currency Peso series issued in the country between 1881 and 1883 which was vulgarly known as "patacones". The example of parallel money was used in other countries, such as in Spain where they named a symbolic currency for barter nets. Although most likely the word is of Spanish origin, with Arabic etymology.
