50 Pesos

The Junta de la Administración de la Casa de Moneda was the issuing authority for Buenos Aires province during a period when the Confederation and the province operated effectively as separate fiscal entities. By 1841, the Casa de Moneda had been printing paper money for over a decade — Argentina's first paper currency experiment had begun under Rivadavia in the 1820s — and chronic depreciation against metallic coin was already entrenched.

Printed locally rather than abroad, these notes were produced without the security infrastructure European printers could offer, which contributed to persistent counterfeiting problems throughout the series. The PS prefix in the Pick cataloguing reflects its classification as a provincial or special issue, distinct from national emissions.