1 Peso Fuerte

Banco Mauá y Ca. was the Argentine branch of the financial network built by Irineu Evangelista de Sousa — the Baron of Mauá — whose banking operations stretched from Rio de Janeiro through Montevideo and into the Río de la Plata region during the third quarter of the nineteenth century. The Rosario branch issued its own notes independently of Buenos Aires, a reflection of how commercially active Rosario had become as a grain export hub in the 1860s.

Mauá's entire banking empire collapsed in 1875, and most of his Argentine paper went out of circulation abruptly. Notes from the Rosario branch are considerably scarcer than those from Buenos Aires, and the PS#1747 series has very few confirmed survivors across all signature combinations.