20 Pesos El Banco de Durango

El Banco de Durango was one of roughly two dozen state-chartered banks authorized under Mexico's 1897 Ley General de Instituciones de Crédito, though the Durango concession predates that law — the bank was operating under an earlier state charter before federal banking legislation rationalized the system. Like most provincial Mexican banks of the period, it relied entirely on American Bank Note Company for production, which gave the note its quality but left the issuer dependent on expensive foreign contracts for every reorder.

The series ran into the Revolution. Banco de Durango notes were invalidated along with all other state bank issues following Carranza's 1916 decree abolishing the old banking system.