4 Pesos Fuertes

The Banco de la Província de Buenos Aires operated as the province's principal issuing institution through much of the nineteenth century, independent of the national government in a period when Buenos Aires and the Argentine Confederation were still working out the terms of their uneasy political coexistence. By 1871, the province had long-standing relationships with American Bank Note Company, whose plates produced most of the bank's higher-denomination issues during this period.

The "pesos fuertes" denomination — strong pesos — was a deliberate distinction from the heavily depreciated papel moneda circulating elsewhere, though the practical difference had eroded considerably by the early 1870s.