1 Peso El Banco Occidental

El Banco Occidental operated out of Cali, in the Cauca Valley, one of several Colombian regional banks that survived the aftermath of the 1000 Days War only to face extinction under Law 51 of 1918, which nationalized the right of issue and forced private banks to surrender their currency privileges. Notes from this series would have been in active circulation through some of the most turbulent years of Colombian monetary history, including the peso's gradual stabilization following the hyperinflation of the civil war period.

The ABNC plate work on Colombian regional issues of this period is consistently fine — the company held contracts with at least a dozen Colombian private banks simultaneously.