Specimen Bank Note: Colombia specimen 20 Pesos Oro

Specimen Bank Note: Colombia specimen 20 Pesos Oro, circa 1951, issued by El Banco De la Republica Bogota Colombia, two signatures, no serial number, red SPECIMEN overprint to face, two cancellation holes, crisp condition, there are some random pink and blue ink dots here and there which appear intentional, an ink pen mark to top left corner of face, some slight discolouration around the edges with very minor rounding of the corners