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.

All registered stamps issued by Colombia in 2013

The 2013 issuing programme is not available.
  1. Co021.13-80
    Wns Number
    CO021.13
    Country / Post
    Colombia
    Date of Issue
    December 06, 2013
    Subject
    Coffee Cultural Landscape
  2. Co022.13-80
    Wns Number
    CO022.13
    Country / Post
    Colombia
    Date of Issue
    December 11, 2013
    Subject
    Christmas 2013
  3. Co023.13-80
    Wns Number
    CO023.13
    Country / Post
    Colombia
    Date of Issue
    December 13, 2013
    Subject
    500th Anniversary of the Discovery of the Pacific Ocean