COLOMBIA. Banco de la República. 500 Pesos Oro. August 2, 1947. P-391b.Another pleasant example of a difficult issued note of this type and date. Olive face with Bolívar at the right end. Standard style back in orange. Series G. Six-digit serial number with prefix: A134281. It should be reiterated that high grade issued notes from this P-391 series are great rarities. These were the finest Eldorado could obtain after decades of searching and acquisition.