1 Peso Oro

The Banco de la República was established in 1923 under direct pressure from the Kemmerer Mission — the U.S. financial advisory commission sent to restructure Colombia's monetary system after decades of chronic instability. The 1 Peso Oro was among the first notes issued under the new regime, and its long print run through 1954 reflects just how stable the low denomination proved to be relative to the inflation-driven chaos that eventually retired it.

ABNC held the contract throughout the entire series lifespan. The "Oro" designation was not decorative — it specified convertibility to gold-backed currency, a promise that became increasingly nominal as Colombia suspended gold convertibility during the 1930s Depression.