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 2017

The 2017 issuing programme is not available.
  1. Co051.17-80
    Wns Number
    CO051.17
    Country / Post
    Colombia
    Date of Issue
    December 07, 2017
    Subject
    126 Years of the Colombian National Police (1891-2017)
  2. Co052.17-80
    Wns Number
    CO052.17
    Country / Post
    Colombia
    Date of Issue
    December 15, 2017
    Subject
    150 Years of 'María' from Jorge Isaacs (1867-2017)
  3. Co053.17-80
    Wns Number
    CO053.17
    Country / Post
    Colombia
    Date of Issue
    December 20, 2017
    Subject
    100 years of the Improvement and Ornament Society of Bogotá (1917-2017)