20 Pesos Plata Boliviana

Banco del Litoral was a short-lived Argentine commercial bank operating out of Rosario, and its authorization to issue peso-denominated paper was premised on silver convertibility — the plata boliviana denomination explicitly referencing the Bolivian silver peso that circulated widely in the Río de la Plata region due to chronic shortages of Argentine coinage. The bank's note-issuing privileges were revoked within a few years as the national government moved to consolidate monetary authority.

Provincial and quasi-private bank paper from Rosario in this period survives in vanishingly small numbers. Most was redeemed, refused, or simply wore out in a commercial port city where paper money changed hands fast and with little ceremony.