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 AR030.16

  1. Ar029.16-80
    Wns Number
    AR029.16
    Country / Post
    Argentina
    Date of Issue
    December 19, 2016
    Subject
    Children Art Contest - Sane feelings and values
  2. Ar030.16-80
    Wns Number
    AR030.16
    Country / Post
    Argentina
    Date of Issue
    December 19, 2016
    Subject
    Children Art Contest - Sane feelings and values
  3. Ar031.16-80
    Wns Number
    AR031.16
    Country / Post
    Argentina
    Date of Issue
    December 19, 2016
    Subject
    Children Art Contest - Sane feelings and values