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 by Mayotte in 2004

Show issuing programme...
  1. Yt020.04-80
    Wns Number
    YT020.04
    Country / Post
    Mayotte
    Date of Issue
    November 15, 2004
    Subject
    Domino's players