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 XD010.11

  1. Xd010.11-80
    Wns Number
    XD010.11
    Country / Post
    Andorra (F)
    Date of Issue
    September 03, 2011
    Subject
    Snow Rose
  2. Xd011.11-80
    Wns Number
    XD011.11
    Country / Post
    Andorra (F)
    Date of Issue
    September 03, 2011
    Subject
    Evergreen Rose