COLOMBIA. Banco de la República. 1 Peso Oro. July 20, 1929. P-380a.This is a beautiful design type that was a workhorse in circulation for decades. This earliest date appears to have been printed in a few print runs over the years until the next series date 1940. Blue face with multicolor highlights and a blue back. Santander facing at the left with a Foringer style allegorical male figure (representing Agriculture or Bounty). A premium example with extremely low seven-digit serial number 0000004. Some light handling, but an exciting low number for a type that saw demanding circulation.