100 Pesos El Banco Nacional de Mexico

The Banco Nacional de México held a privileged position among Mexico's competing state and private banks during the Porfiriato — it alone was permitted to open branches across state lines, a concession tied directly to its status as the federal government's fiscal agent. That relationship with the Díaz administration meant these notes circulated broadly, from the capital to the northern mining districts, in a way most regional bank paper never could.

The American Bank Note Company held the printing contract throughout the full run, which accounts for the series' unusual longevity — nearly three decades without a fundamental redesign. The 1913 cutoff coincides with the Revolutionary banking crisis that eventually forced the Banco Nacional into reorganization under Huerta's government.