1 Peso Boliviano

Banco Paraná was one of several provincial Argentine banks chartered in the 1860s under a loose federal banking framework that allowed individual provinces to issue their own currency. The arrangement was perpetually contentious — Buenos Aires resented provincial note circulation, and many of these banks operated on thin reserves with little oversight from any central authority.

PS prefix in the Pick catalogue denotes a note issued by a state or provincial bank rather than a national authority, and the 1815 reference places this firmly in the Argentine provincial series. Banco Paraná's lifespan was short; national banking legislation in the early 1870s effectively shuttered most provincial issuers.