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.

Stamps issued with ET003.13

  1. Et001.13-80
    Wns Number
    ET001.13
    Country / Post
    Ethiopia
    Date of Issue
    March 19, 2013
    Subject
    Golden Jubilee of African Union
  2. Et002.13-80
    Wns Number
    ET002.13
    Country / Post
    Ethiopia
    Date of Issue
    March 19, 2013
    Subject
    Golden Jubilee of African Union
  3. Et003.13-80
    Wns Number
    ET003.13
    Country / Post
    Ethiopia
    Date of Issue
    March 19, 2013
    Subject
    Golden Jubilee of African Union
  4. Et004.13-80
    Wns Number
    ET004.13
    Country / Post
    Ethiopia
    Date of Issue
    March 19, 2013
    Subject
    Golden Jubilee of African Union