5 Pesos

The Casa de Moneda in Buenos Aires was functioning as a de facto central bank by the 1840s, issuing paper currency under the Rosas administration at a time when the province's finances were under severe strain from prolonged conflict with Uruguay and French and British naval blockades. The Junta de la Administración was its governing body — technically separate from the mint function, though the two operated under the same roof.

PS#385 is provincially issued, not nationally. Argentine national banking infrastructure did not exist until 1854, a full decade after this note circulated.