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 EE021.11

  1. Ee020.11-80
    Wns Number
    EE020.11
    Country / Post
    Estonia
    Date of Issue
    June 02, 2011
    Subject
    Definitive stamp
  2. Ee021.11-80
    Wns Number
    EE021.11
    Country / Post
    Estonia
    Date of Issue
    June 02, 2011
    Subject
    Definitive stamp