20 Pesos

The Confederación Argentina was the rival state that existed in direct opposition to the Buenos Aires provincial government following the 1852 split — a fractured period in which two Argentine governments each issued their own currency and fought for legitimacy. The Ministerio de Hacienda notes of 1859 were issued from Paraná, then the Confederación's capital, during a period of chronic fiscal strain and military expenditure leading toward the Battle of Cepeda in October of that year.

The PS prefix in the Pick catalogue places this firmly in the speculative or semi-official category — survival rates are low, and genuine circulated examples rarely surface outside South American auction houses.