5 Pesos Obligación Provisional del Erario Federal

The "Obligación Provisional" designation is key to understanding what this note actually is: not a banknote in any conventional sense, but an emergency obligation — essentially a government IOU — issued by the Federal Treasury during the catastrophic breakdown of Mexico's financial system in 1914. That year saw Constitutionalist forces advancing on Mexico City, the Huerta government collapsing, and commercial banks refusing to honor their own notes. The Federal Treasury fell back on provisional paper to keep basic government transactions functioning.

Printed domestically under conditions that precluded access to specialist security printers, the series relied on official stamping rather than engraved security elements. Forgery was a real concern across all Mexican emergency emissions of this period, and the stamp was the only practical deterrent available.