50 Pesos El Banco de Guerrero

El Banco de Guerrero was one of the smaller regional concession banks operating under the 1897 Ley General de Instituciones de Crédito, which permitted individual Mexican states to charter note-issuing banks under federal oversight. The Guerrero concession was a modest operation — the state's economy ran heavily on agriculture and mining rather than commercial banking, and the bank never achieved the circulation volumes of larger contemporaries like Banco de Londres y México.

American Bank Note Company held engraving contracts with a substantial portion of Mexico's regional banks during this period, producing plates of consistent technical quality regardless of the issuing institution's size. The date range spans the Porfiriato's final years through the chaos of the early Revolution, when most concession bank notes were already losing public confidence well before the 1913–1916 forced loan decrees effectively killed the system.