5 Pesos Moneda Boliviana

The Banco del Río de La Plata was one of several provincial Argentine banks chartered during the 1860s under Entre Ríos provincial authority, operating out of Gualeguay — a river port town on the Río Gualeguay whose commercial importance derived almost entirely from the hide and wool trade. These banks issued their own circulating notes largely because Buenos Aires-controlled national currency was chronically scarce in the interior provinces.

The PS prefix in the Pick reference places this firmly in the speculative or semi-official category — the bank's operating history was short and its redemption record unreliable. Notes from Gualeguay-based issuers of this period rarely survived circulation intact, let alone the bank failures that followed Argentina's provincial banking consolidation in the early 1870s.