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 SZ002.04

  1. Sz001.04-80
    Wns Number
    SZ001.04
    Country / Post
    Swaziland
    Date of Issue
    June 14, 2004
    Subject
    Smart Partnership - Host Patron and Advisor
  2. Sz002.04-80
    Wns Number
    SZ002.04
    Country / Post
    Swaziland
    Date of Issue
    June 14, 2004
    Subject
    Smart Partnership International Movement Logos
  3. Sz003.04-80
    Wns Number
    SZ003.04
    Country / Post
    Swaziland
    Date of Issue
    June 14, 2004
    Subject
    Smart Partnership at Work
  4. Sz004.04-80
    Wns Number
    SZ004.04
    Country / Post
    Swaziland
    Date of Issue
    June 14, 2004
    Subject
    Joint Dialogue Convenors