5 Soles Compañía de Obras Públicas y Fomento del Perú

The Compañía de Obras Públicas y Fomento del Perú was a private infrastructure concessionaire operating under contract with the Peruvian government during the brief, chaotic window between the country's guano-financed boom and its fiscal collapse. By 1876 that collapse was essentially underway — Peru was defaulting on its foreign debt, and the government was desperately monetizing anything it could. Private company scrip filling gaps in the circulating medium was less a convenience than a symptom.

The National Bank Note Company attribution is worth scrutiny here: that firm merged into the American Bank Note Company in 1879, meaning plates designed under the NBNC name were routinely transferred and reused afterward.