1 Peso

The Compañía Internacional de Billetes de Banco was a Guatemala City-based printing firm — unusual for the period, when most Latin American banks contracted European or North American security printers. Their domestic production kept costs down but introduced inconsistencies in ink quality across print runs, something collectors notice when comparing examples from different years within this long issue window.

El Banco de Guatemala was a private commercial bank operating under concession, not a central bank. Its note-issuing privileges survived into the early twentieth century only because Guatemala lacked a state monopoly on currency until the Banco Central's establishment in 1926.