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 SE013.05

  1. Se013.05-80
    Wns Number
    SE013.05
    Country / Post
    Sweden
    Date of Issue
    March 10, 2005
    Subject
    Dag Hammarskjold
  2. Se014.05-80
    Wns Number
    SE014.05
    Country / Post
    Sweden
    Date of Issue
    March 10, 2005
    Subject
    Dag Hammarskjold