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 SE004.04

  1. Se004.04-80
    Wns Number
    SE004.04
    Country / Post
    Sweden
    Date of Issue
    January 26, 2004
    Subject
    Laponia - World Heritage 4 - Europa 2004
  2. Se005.04-80
    Wns Number
    SE005.04
    Country / Post
    Sweden
    Date of Issue
    January 26, 2004
    Subject
    Laponia - World Heritage 4 - Europa 2004