4 Soles

Banco La Providencia was a short-lived Peruvian private bank, operating during the brief free-banking period that Lima's government permitted before the catastrophic War of the Pacific reshaped the country's entire financial infrastructure. The American Bank Note Company produced notes for dozens of Latin American issuers during this period, often supplying generic frames with customized text — the plates for minor Peruvian banks rarely received the full bespoke treatment reserved for sovereign accounts.

The denomination itself is the curiosity here. Four soles sits at an awkward interval, suggesting this note was designed to fill a specific transactional gap in local commerce rather than slot into a conventional series.