COLOMBIA. Republica de Colombia. 5 Pesos Oro. January 1, 1926. P-373. Face and Back Specimen Proofs.2 pieces in lot. Pair of uniface impressions ("prueba unifase") in issue colors, without series. Ex 1991 ABN Sale lots. Rust clip traces and handling. Rare and Extremely Fine.Mixed Uncertified Condition.From the Eldorado Collection of Colombian Paper Money.