10 Pesos Plata Boliviana

Banco Argentino of Concordia was one of several provincial Argentine banks authorized under the 1854 Entre Ríos banking laws, issuing notes denominated in pesos plata boliviana — the Bolivian silver peso, which circulated widely in the Río de la Plata region as a de facto trade currency long after Buenos Aires began pushing for monetary standardization. The denomination itself signals how fragmented Argentine currency remained in this period, with interior provinces pegging to whatever silver standard was actually in local use rather than any national unit.

ABNC's involvement was typical of South American provincial banking at the time — the engraving and printing quality far exceeded what the issuing institution could have obtained domestically.