1 Peso

Argentina's monetary unification in 1881 was genuinely consequential — before the Ley de Moneda of that year, the country had no single national currency, with provincial banks issuing competing paper and Buenos Aires operating effectively as a separate financial system. This peso fuerte was the first standardized national silver coin struck under the unified regime, minted in Buenos Aires and, for some years, supplemented by contracts with European mints.

The series spans three dated years with meaningful mintage variation between them. The 1882 date is notably scarcer in circulated grades, as production was sharply curtailed mid-series.