10 Pesos

The Banco y Casa de Moneda was Buenos Aires province's own institution, deliberately separate from any national authority — this was the height of the secession period, when the Estado de Buenos Ayres had rejected the Argentine Confederation and operated as a sovereign entity with its own currency, customs revenue, and monetary policy. The 1853 constitution had been ratified without Buenos Aires, and notes like this one were a direct expression of that political rupture.

The PS prefix in the Pick catalogue signals provincial or state-level issue. By the time Buenos Aires reintegrated into the Argentine Republic in 1862, these notes were retired from use.