The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

CO105.10

Country / Post Colombia
Date of Issue 19 November 2010
Primary theme Fauna (Birds - General)
History (Geographical history)
Subject Centenary of the District of Valle del Cauca
Width 30.0 mm
Height 40.0 mm
Denomination 4000 COP
Number in set 6 (show set)
Layout/Format miniature sheet of 6 of 6 designs
Perforations 13 by 13
Stamp issuing authority Servicios Postales Nacionales SA
Printer Thomas Greg & Sons de Colombia SA