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 AR005.09

  1. Ar005.09-80
    Wns Number
    AR005.09
    Country / Post
    Argentina
    Date of Issue
    March 07, 2009
    Subject
    Preservation of Polar Areas and Glaciers
  2. Ar006.09-80
    Wns Number
    AR006.09
    Country / Post
    Argentina
    Date of Issue
    March 07, 2009
    Subject
    Preservation of Polar Areas and Glaciers