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.

All registered stamps issued in 2018 with theme "Scouting"

  1. Am009.18-80
    Wns Number
    AM009.18
    Country / Post
    Armenia
    Date of Issue
    July 26, 2018
    Subject
    Sport - 100th Anniversary of the Armenian Sports and Scouts Organization (Homenetmen)
  2. Lt010.18-80
    Wns Number
    LT010.18
    Country / Post
    Lithuania
    Date of Issue
    March 28, 2018
    Subject
    100th Anniversary of Lithuanian Scouts